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WorksheetsSPAK 2025 BY MJ
Total questions: 499
Worksheet time: 6hrs 14mins
Imagine a place in the cosmos far from all gravitational and frictional influences. Suppose that you visit that place (just suppose) and throw a rock. The rock will
Accelerate
Stay Still
Decelerate
Gradually Stop
Continue to move at a constant speed
A 2-kg object is moving horizontally with a speed of 4 m/s. How much net force is required to keep the object moving at this speed and in this direction?
8N
4N
0N
-4N
-8N
An object floating in space requires a force to set it on motion
True
False
A group of physics teachers are taking some time off for a little putt-putt golf. The 15th hole at the Hole-In-One Putt-Putt Golf Course has a large metal rim that putters must use to guide their ball towards the hole. Mr. S guides a golf ball around the metal rim When the ball leaves the rim, which path (1, 2, or 3) will the golf ball follow?
1
2
3
A Physics teacher drops a 2kg textbook (weight = 20N) out of a window in frustration. They land in a conveniently placed swimming pool and experience a constant upward force of 20N. Which diagram correctly shows the book's velocity?
A
B
C
A Physics teacher drops a 2kg textbook (weight = 20N) out of a window in frustration. They land in a conveniently placed swimming pool and experience a constant upward force of 20N.
One of his keen students comments 'Once the book hits the water, the forces are balanced and the book will stop.' Are they correct?
Yes
No
A Physics teacher drops a 2kg textbook (weight = 20N) out of a window in frustration. They land in a conveniently placed swimming pool and experience a constant upward force of 20N.
One of his keen students comments "Upon hitting the water, the box will accelerate upwards because the water applies an upward force.". Are they correct?
Yes
No
A Physics teacher drops a 2kg textbook (weight = 20N) out of a window in frustration. They land in a conveniently placed swimming pool and experience a constant upward force of 20N.
One of his keen students comments "Upon hitting the water, the box will bounce upwards due to the upward force.". Are they correct?
Yes
No
If the forces acting upon an object are balanced, then the object
Is not moving
Must be moving with constant velocity
Must not be accelerating
Could be any of the above
None of the above
Definition: Crest
The highest point of a transverse wave
The lowest point of a transverse wave
The center of a transverse wave
The distance between two points on a wave
Definition: Trough
The center of a wave
The resting position of a wave
The lowest point of a transverse wave
The highest point of a transverse wave
What is the frequency of a wave?
# of oscillations produced in a certain amount of time
The distance the wave oscillates from it's resting position
The lowest point of a transverse wave
Resting point of a wave - no wave movement
What is the amplitude of a wave?
Where there is no wave movement
The distance the wave oscillates from it's resting position
A disturbance that transfers energy from one place to another
The distance between two corresponding parts of a wave
What is a medium?
The lowest point of a transverse wave
The size of a wave
The middle of a wave
Matter through which a wave travels
What type of matter can waves travel through?
Solid
Liquid
Gas
All of the Above
ex. police car siren sounding lower pitch after the car passes
If the wavelength of a wave increased, what would happen to the frequency?
decrease
increase
stay the same
What property of this wave is represented by the letter "A"
amplitude
crest
trough
wavelength
What type of interference is represented in this diagram?
Constructive
Destructive
What type of interference is represented in the diagram?
Constructive
Destructive
Sound waves in musical instruments or tubes create standing waves that enhance which type of interference to make louder sounds?
Constructive
Destructive
What type of interference do noise cancelling headphones use?
Constructive Interference
Destructive Interference
which is NOT an example of an organelle?
mitochondrion
nucleus
heart
cell membrane
What is the number of protons that the element in this image contain?
14
7
15
18
How many neutron are in the atom "K"?
7
2
39
12
True or False? Neutrons have a negative charge
True
False
The proper formula for magnesium hydroxide:
MgOH
Mg2OH
Mg(OH)2
Mg2OH2
How do the following two elements bond together?
Al3+ O2-
AlO
Al2O3
Al3O6
Al3O2
The three types of nuclear radiation in order of increasing penetrating power are
alpha, beta, gamma
alpha, gamma, beta
beta, alpha, gamma
gamma, alpha, beta
Which best describes a chemical reaction?
Products --> Reactants
Reactants --> Products
How is 100,000 as a power of 10?
10^5.
3.1416.
Multiply the number by itself.
What is a proportion?
You invert the divisor and multiply the numerators together and the denominators together.
Convert it to a decimal, move the decimal point two places to the right and add the percent sign.
A Statement of equality between 2 or more ratios.
How do you find the square of a number?
Convert the numbers into scientific notation by using powers of 10.
Multiply the number by itself.
What are two different ways that a ratio may be expressed?
(1) As a fraction (2) By placing a colon between the 2 numbers.
Convert it to a decimal, move the decimal point two places to the right and add the percent sign.
Multiply the decimal by the desired denominator. The result becomes the numerator in the fraction.
Define Pi
3.1416
3.1316
3.1415
What is a common method of making computations involving very large or very small numbers more manageable?
Multiply the decimal by the desired denominator. The result becomes the numerator in the fraction.
Convert the numbers into scientific notation by using powers of 10.
What is meant by the root of a number?
A root is 2 or more equal smaller number that, when multiplied together, equal the specified number.
A root is 3 or less equal smaller numbers that, when multiplied together, equal the specified number.
Describe the result of adding a large positive number and a smaller negative number.
The result is a smaller positive number because you ignore the addition sign and subtract.
The result is a larger positive number because you ignore the subtraction sign and add.
What is the key step that must be performed in order to add or subtract unlike fraction?
you must find the highest common denominator.
you must find the lowest common denominator.
What formula is used to find the area of a rectangle and a triangle
For a rectangle: A=LxW For a triangle A=1/2(BxH)
For a rectangle: A = 1/2(B1+B2) x H, For a triangle A = 1/2(BxH).
How do you change a decimal into the nearest equivalent fraction?
Multiply the decimal by the desired denominator. The result becomes the numerator in the fraction.
Multiply the decimal by the desired numerator. The result becomes the denominator in the fraction.
How do you convert a fraction into a decimal?
Divide the top number by the bottom number.
Divide the bottom number by the top number.
What is the key step that must be performed in order to add or subtract unlike fraction?
you must find the lowest common denominator.
Divide the top number by the bottom number.
You invert the divisor and multiply the numerators together and the denominators together.
How do you divide one fraction by another?
You invert the numerators and multiply the divisor together and the denominators together.
You invert the divisor and multiply the numerators together and the denominators together.
How can you convert a decimal to a percent?
multiply the decimal by 100 and add the percent sign.
multiply the decimal by 10 and add the percent sign.
Factorise completely: b³ ─ 4ab + ab³ ‒ 4b
A father and his son can work a piece of land in 10 days. The father can do it alone in y days while the son alone will take five days longer. The equation which is
z is partly constant and partly varies inversely as the square of d. When d = 1, z = 11 and when d = 2, z = 5. Find the value of z when d = 4.
3.5
Solve for x and y in the equations below: x² ─ y = 4, x + y = 2
(2, 0)
Evaluate (81^¾ ─ 27^⅓) / (3 x 2³)
What are the integral values of x which satisfy the inequality ─1 < 3 ─ 2x ≤ 5?
If ─2 is the solution of the equation 2x + 1 ─ 3c = 2c + 3x ─ 7, find the value of c
Divide m³ˣ ─26m²ˣ + 156mˣ ─ 216 by m²ˣ ─ 24mˣ + 108
Find a positive value of p if the expression 2x² ─ px + p leaves a remainder of 6 when divided by x ─ p
Express in partial fraction (5x ─12)/ (x ─ 2)(x ─ 3)
2/(x - 2) + 3/(x - 3)
For the set of numbers 1, 2, 3, 4, 4, 5, 6, 7, 8, 10. The mean, mode, and median respectively are
5, 4, and 4.5
5, 6 and 5.5
4, 5, and 6.0
4, 5 and 4.5
The mean age of a class of twenty school pupils is 13. If their teacher's age is included, the mean becomes 14. the age of the teacher is
30
34
33
32
A ray of light is incident on a plane mirror. If the plane mirror is rotated through an angle α, the reflected ray will be rotated through
A pin is positioned at 24 cm from a concave mirror of radius 42 cm. The magnification of the image formed is
7
6
An object is placed 20 cm from a convex mirror of radius of curvature 30 cm. The image is located
8.6 cm behind the mirror
8.6 cm in front of the mirror
A ray of light traveling in air is incident at an angle of 60° on the surface of water of refractive index ⁴/₃. The angle of refraction is
A fish is located at the bottom of a pond which is 3 m deep. By how much would the fish appear to be displaced when viewed directly from above the pond if the refractive index of water is ⁴/₃?
A body accelerates uniformly from rest at 7 ms⁻², its velocity after traveling a distance of 14 m is
A fruit drops from the top of a tree 80 m tall. The time it takes the fruit to reach the ground is
A current of 360 mA passes through a conductor for 15 minutes. The quantity of electricity transported is
When the solute concentration of a cell is higher than the intracellular solute concentration , then it is said to be
The net weight of all organisms living in an ecosystem which increases as a result of its net production is called
The study of how a specie population interacts with the environment and its resulting dynamics is called
autecology
synecology
The snail and squid belong to the class
The organism with a pair of jointed appendages are
The partition of the serially homologous arthropod body plan into discrete region is known as
ecdysis
tagmosis
The study of body structures of different species of animals in order to understand the changes they have undergone is called
A microscopic single─celled organism which has neither a distinct nucleus with a membrane nor other specialized organelles is called
The terrestrial plants which are neither adapted to particularly dry nor particularly wet environments are called
Which of these plants exhibits double fertilisation ?
The cell responsible for transmission of impulses is called
What does X stands for in the following expression; pH = Log₁₀ [X]
The number of atoms in 2.4g of magnesium is
Bauxite is the ore of which of the following metals
The purest form of iron is
The valence electrons of the element ₁₃Al are in the
2s, 2p orbital
3s, 3p orbital
The noble gas used in filling balloons is
Aqueous salt which loses its water of crystallisation when exposed to air is
Neutral atom of argon with atomic number 18 has the same number of electrons as
When the temperature of 2dm³ of an ideal gas is decreased from 100k to half, calculate the final volume of the gas
Factorise completely: b³ ─ 4ab + ab³ ‒ 4b
A father and his son can work a piece of land in 10 days. The father can do it alone in y days while the son alone will take five days longer. The equation which is
z is partly constant and partly varies inversely as the square of d. When d = 1, z = 11 and when d = 2, z = 5. Find the value of z when d = 4.
3.5
Solve for x and y in the equations below: x² ─ y = 4, x + y = 2
(2, 0)
Evaluate (81^¾ ─ 27^⅓) / (3 x 2³)
What are the integral values of x which satisfy the inequality ─1 < 3 ─ 2x ≤ 5?
If ─2 is the solution of the equation 2x + 1 ─ 3c = 2c + 3x ─ 7, find the value of c
Divide m³ˣ ─26m²ˣ + 156mˣ ─ 216 by m²ˣ ─ 24mˣ + 108
Find a positive value of p if the expression 2x² ─ px + p leaves a remainder of 6 when divided by x ─ p
Express in partial fraction (5x ─12)/ (x ─ 2)(x ─ 3)
2/(x - 2) + 3/(x - 3)
For the set of numbers 1, 2, 3, 4, 4, 5, 6, 7, 8, 10. The mean, mode, and median respectively are
5, 4, and 4.5
5, 6 and 5.5
4, 5, and 6.0
4, 5 and 4.5
The mean age of a class of twenty school pupils is 13. If their teacher's age is included, the mean becomes 14. the age of the teacher is
30
34
33
32
A ray of light is incident on a plane mirror. If the plane mirror is rotated through an angle α, the reflected ray will be rotated through
A pin is positioned at 24 cm from a concave mirror of radius 42 cm. The magnification of the image formed is
7
6
An object is placed 20 cm from a convex mirror of radius of curvature 30 cm. The image is located
8.6 cm behind the mirror
8.6 cm in front of the mirror
A ray of light traveling in air is incident at an angle of 60° on the surface of water of refractive index ⁴/₃. The angle of refraction is
A fish is located at the bottom of a pond which is 3 m deep. By how much would the fish appear to be displaced when viewed directly from above the pond if the refractive index of water is ⁴/₃?
A body accelerates uniformly from rest at 7 ms⁻², its velocity after traveling a distance of 14 m is
A fruit drops from the top of a tree 80 m tall. The time it takes the fruit to reach the ground is
A current of 360 mA passes through a conductor for 15 minutes. The quantity of electricity transported is
When the solute concentration of a cell is higher than the intracellular solute concentration , then it is said to be
The net weight of all organisms living in an ecosystem which increases as a result of its net production is called
The study of how a specie population interacts with the environment and its resulting dynamics is called
autecology
synecology
The snail and squid belong to the class
The organism with a pair of jointed appendages are
The partition of the serially homologous arthropod body plan into discrete region is known as
ecdysis
tagmosis
The study of body structures of different species of animals in order to understand the changes they have undergone is called
A microscopic single─celled organism which has neither a distinct nucleus with a membrane nor other specialized organelles is called
The terrestrial plants which are neither adapted to particularly dry nor particularly wet environments are called
Which of these plants exhibits double fertilisation ?
The cell responsible for transmission of impulses is called
What does X stands for in the following expression; pH = Log₁₀ [X]
The number of atoms in 2.4g of magnesium is
Bauxite is the ore of which of the following metals
The purest form of iron is
The valence electrons of the element ₁₃Al are in the
2s, 2p orbital
3s, 3p orbital
The noble gas used in filling balloons is
Aqueous salt which loses its water of crystallisation when exposed to air is
Neutral atom of argon with atomic number 18 has the same number of electrons as
When the temperature of 2dm³ of an ideal gas is decreased from 100k to half, calculate the final volume of the gas
Another Name for moment of couple ?
Torque
cueue
kiln
moment
A device for storing electrical charge is .........
bits
thermometer
capacitor
potentiometer
3x - 9x = 36
find x?
-6
6
3
none of the above
................. is energy by virtue of mass only
Rest energy
potential energy
kinetic energy
momentous energy
In a plant cell, this surrounds the membrane, giving the cell a rigid, boxlike shape.
cell membrane
cell
ribosome
cell wall
This organelle capture energy from sunlight and use it to produce food for the cell.
cell membrane
chloroplasts
mitochondria
ribosomes
This is the gel-like fluid in which many different organelles are found.
cell membrane
nucleus
organelle
cytoplasm
This is a tiny membrane-bound structure in a cell that carries out a specific function within a cell.
organelle
cell
nucleus
ribosomes
This organelle directs all the cell's activities.
mitochondria
chloroplasts
vacuole
nucleus
This organelle makes ribosomes.
Nucleus
Michochondria
Nucleolus
Lysosomes
This organelle converts the stored energy in food into usable energy for the cell.
chloroplast
ER
mitochondria
cell membrane
This organelle breaks down worn-out cell parts and digests substances in the cell.
lysosome
centriole
vacuole
nucleus
Unit of specific heat capacity is
J/K
J/KG
J/KGK
JKG/k
Heat is positive, When heat _________the system
given to
given by
Change of state from solid to vapour is called (a)
The phenomenon of expansion of water when cooled from 4 degree Celsius to 0 degree Celsius is called (a) expansion.
Atoms become ions by ___
gaining or losing neutrons
nuclear reactions
gaining or losing electrons
gaining or losing protons
Isothermal process are _______process
fast
slow
very fast
very slow
Cations are atoms that have lost electrons, and therefore take on ___
a negative charge
a positive charge
a larger mass number
a smaller mass number
Atoms that gain electrons to become negative are ___
cautions
onions
anions
aniuns
To write a monatomic ion as a formula, you use the chemical symbol of its base element and then add ___
the charge as a subscript
the charge as a superscript
the mass number as a subscript
the atomic number as a superscript
An ionic compound formed from oxygen and calcium would be named ___
oxygen calcide
oxide calcium
calcium oxide
calcide oxygen
The alkali metals and alkaline earth metals react with non-metals, always ___
losing electrons, forming cations
losing electrons, forming anions
gaining electrons, forming cations
gaining electrons, forming anions
Iron, a transition metal, forms cations that can have a charge of either ___
2- or 3-
1- or 4-
2+ or 3+
1+ or 4+
...................... is an effect caused by a vibrating body making another body to vibrate at its natural frequency?
Resonance
Amplitude
Beat effect
Frequency
............. is the difference between the lowest and highest frequency?
frequency difference
beat frequency
Rarefaction
Diffraction
For the hydrogen atom, which series describes electron transitions to the N=1 orbit, the lowest energy electron orbit? Is it the:
Balmer series
Lyman series
Paschen series
Pfund series
For an object moving in uniform circular motion, the direction of the instantaneous acceleration vector is:
tangent to the path of motion
equal to zero
directed radially outward
directed radially inward
In physics, a radian per second is a unit of:
angular velocity
angular displacement
angular acceleration
angular momentum
The potential difference across a 4 ohm resistor is 20 volts. Assuming that all of the energy dissipated by this resistor is in the form of heat, how many joules of heat are radiated in 10 seconds?
2500J
1500J
1000J
2000J
Induced electric currents can be explained using which of the following laws?
Gauss's Law
Faraday's Law
Ohm's Law
Ampere's Law
A virtual image can be formed by one or more of the following single mirrors? Identify them.
plane mirror
concave spherical mirror
convex spherical mirror
all of the above
Karyo means the cell has a ____________.
nucleus
mitochondria
ribosome
Golgi apparatus
(Blank) is the organ in your head made up of nerves that processes information and controls behaviour.
Forebrain
Midbrain
Brain
Hindbrain
Karyo means the cell has a ____________.
nucleus
mitochondria
ribosome
Golgi apparatus
(Blank) is the organ in your head made up of nerves that processes information and controls behaviour.
Forebrain
Midbrain
Brain
Hindbrain
(BLANK) is the anterior part of the brain, including the hemispheres and the central brain structures.
Midbrain
Forebrain
Hindbrain
Cerebellum
(BLANK) is directed towards the front, when used in relation to our biology.
Anterior
Posterior
Cerebellum
Forebrain
Another Name for moment of couple ?
Torque
cueue
kiln
moment
A device for storing electrical charge is .........
bits
thermometer
capacitor
potentiometer
3x - 9x = 36
find x?
-6
6
3
none of the above
................. is energy by virtue of mass only
Rest energy
potential energy
kinetic energy
momentous energy
In a plant cell, this surrounds the membrane, giving the cell a rigid, boxlike shape.
cell membrane
cell
ribosome
cell wall
This organelle capture energy from sunlight and use it to produce food for the cell.
cell membrane
chloroplasts
mitochondria
ribosomes
This is the gel-like fluid in which many different organelles are found.
cell membrane
nucleus
organelle
cytoplasm
This is a tiny membrane-bound structure in a cell that carries out a specific function within a cell.
organelle
cell
nucleus
ribosomes
This organelle directs all the cell's activities.
mitochondria
chloroplasts
vacuole
nucleus
This organelle makes ribosomes.
Nucleus
Michochondria
Nucleolus
Lysosomes
This organelle converts the stored energy in food into usable energy for the cell.
chloroplast
ER
mitochondria
cell membrane
This organelle breaks down worn-out cell parts and digests substances in the cell.
lysosome
centriole
vacuole
nucleus
Unit of specific heat capacity is
J/K
J/KG
J/KGK
JKG/k
Heat is positive, When heat _________the system
given to
given by
Isothermal process are _______process
fast
slow
very fast
very slow
Change of state from solid to vapour is called (a)
The phenomenon of expansion of water when cooled from 4 degree Celsius to 0 degree Celsius is called (a) expansion.
Atoms become ions by ___
gaining or losing neutrons
nuclear reactions
gaining or losing electrons
gaining or losing protons
Cations are atoms that have lost electrons, and therefore take on ___
a negative charge
a positive charge
a larger mass number
a smaller mass number
Atoms that gain electrons to become negative are ___
cautions
onions
anions
aniuns
To write a monatomic ion as a formula, you use the chemical symbol of its base element and then add ___
the charge as a subscript
the charge as a superscript
the mass number as a subscript
the atomic number as a superscript
An ionic compound formed from oxygen and calcium would be named ___
oxygen calcide
oxide calcium
calcium oxide
calcide oxygen
The alkali metals and alkaline earth metals react with non-metals, always ___
losing electrons, forming cations
losing electrons, forming anions
gaining electrons, forming cations
gaining electrons, forming anions
Iron, a transition metal, forms cations that can have a charge of either ___
2- or 3-
1- or 4-
2+ or 3+
1+ or 4+
...................... is an effect caused by a vibrating body making another body to vibrate at its natural frequency?
Resonance
Amplitude
Beat effect
Frequency
............. is the difference between the lowest and highest frequency?
frequency difference
beat frequency
Rarefaction
Diffraction
For the hydrogen atom, which series describes electron transitions to the N=1 orbit, the lowest energy electron orbit? Is it the:
Balmer series
Lyman series
Paschen series
Pfund series
For an object moving in uniform circular motion, the direction of the instantaneous acceleration vector is:
tangent to the path of motion
equal to zero
directed radially outward
directed radially inward
A Newton is equal to which of the following?
kilogram per meter-second
kilogram-meter per second squared
meter per second squared
kilogram-meter per second
In physics, a radian per second is a unit of:
angular velocity
angular displacement
angular acceleration
angular momentum
The potential difference across a 4 ohm resistor is 20 volts. Assuming that all of the energy dissipated by this resistor is in the form of heat, how many joules of heat are radiated in 10 seconds?
2500J
1500J
1000J
2000J
Induced electric currents can be explained using which of the following laws?
Gauss's Law
Faraday's Law
Ohm's Law
Ampere's Law
A virtual image can be formed by one or more of the following single mirrors? Identify them.
plane mirror
concave spherical mirror
convex spherical mirror
all of the above
Karyo means the cell has a ____________.
nucleus
mitochondria
ribosome
Golgi apparatus
(Blank) is the organ in your head made up of nerves that processes information and controls behaviour.
Forebrain
Midbrain
Brain
Hindbrain
(BLANK) is the anterior part of the brain, including the hemispheres and the central brain structures.
Midbrain
Forebrain
Hindbrain
Cerebellum
(BLANK) is directed towards the front, when used in relation to our biology.
Anterior
Posterior
Cerebellum
Forebrain
which is NOT an example of an organelle?
mitochondrion
nucleus
heart
cell membrane
In order to increase the rate of reaction using an enzyme a scientist could.... (Choose all that apply)
Increase the amount of substrate
Decrease the temperature
Increase the temperartue
Introduce a competitive inhibitor
Basic unit of all forms of life
Cell
Nucleus
Prokaryote
Eukaryote
Thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell
Cell Wall
Cell Membrane
Nucleus
Golgi apparatus
In eukaryotic cells, all cellular contents outside the nucleus; in prokaryotic cells, all of the cell's contents
Centriole
Chloroplast
Cytoplasm
Cytoskeleton
Cell organelle that stores materials such as water, salts, proteins, and carbohydrates
Centriole
Vacuole
Ribosome
Lysosome
Structure in an animal cell that helps to organize cell division
Nucleus
Nucleolus
Endoplasmic reticulum
Centriole
Organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy
Chloroplast
Mitochondria
Cell Wall
Lipid Bilayer
Strong, supporting layer around the cell membrane in some cells
Cytoskeleton
Cytoplasm
Cell wall
Nucleus
Which of these is NOT true of organelles(cell parts)?
Organelles perform a certain function for a cell.
Organelles are membrane-enclosed structures in a cell.
Organelles are all the same inside a particular animal.
Organelles are separated from the other parts of the cell.
Which of these is NOT a unique structure to plant cells?
cell wall
central vacuole
chloroplas
nucleus
All cells need energy (ATP) to function. Which cell organelle is responsible for producing energy in the cell? "The Powerhouse"
chloroplasts
mitochondria
nucleus
vacuoles
Where do new cells come from?
other cells
nucleus
Golgi body
macrophages
Because they share similar structures, cells all carry out the same function.
True
False
Bonding in diamond is
covalent
ionic
dipole
metallic
Ionic Solids Have
a low melting point
a moderate melting point
a high melting point
none of these
The bond between ice molecules is
ionic
covalent
a hydrogen
metallic
Ionic bonds are mainly formed in
inorganic compounds
metals
organic compounds
none of these
The bond between ice molecules is
ionic
covalent
a hydrogen
metallic
How many basic crystal systems are possible ?
Four
Five
Six
Seven
How many types of Bravis lattices are possible in crystals ?
7
14
8
5
The number of lattice points in a primitive cell is
4
2
8
1
The percentage of total volume occupied by the particles in a bbc structure is
32
68
50
74
The fcc structure is often called
cubic close packed
hexagonal close packed
the garaphite structure
the diamond structure
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
Which homolgous series contains a C=C double bond?
alkanes
alkenes
alcohols
carboxylic acids
Which homolgous series contains only C-C single bonds?
alkanes
alkenes
alcohols
carboxylic acids
Which type of polymerisation uses only one monomer?
addition polymerisation
condensation polymerisation
Which type of polymerisation uses two different monomers, both contain a functional group at each end?
addition polymerisation
condensation polymerisation
What is made when a dicarboxylic acid reacts with a diol?
a polyamide
a polyester
an evaporation polymer
a condensation polymer
-COOH is the functional group for...
alcohols
esters
carboxylic acids
amides
-COO is the functional group for...
alcohols
esters
carboxylic acids
amides
-OH is the functional group for...
alcohols
esters
carboxylic acids
amides
An alcohol can be __________________ to form a carboxylic acid
oxidised
reduced
polymerised
broken down
Alcohols can be oxidised by...
combustion
freezing
decomposition
addition
Acidified potassium dichromate is an example of...
an alkali
a reducing agent
a fuel
an oxidising agent
Name this carboxylic acid
ethanoic acid
prpoanoic acid
butyl butanoate
butanoic acid
Name this ester
ethyl ethanoate
propyl ethanoate
methyl ethanoate
ethyl methanoate
What catalyst is used in making esters?
sodium hydroxide
iron
sulfuric acid
lithium oxide
alkene + ? --> alcohol
hydrogen
oxygen
water
carbon dioixde
alcohol + ? --> carboxylic acid
hydrogen
oxygen (oxidising agent)
water
carbon dioixde
carboxylic acid + ? --> ester
water
alkene
alcohol
alkane
Name the polymer formed from this monomer
chloroethene
chloroethane
dichloroethene
dichloroethane
Name the monomer that forms this polymer
ethane
ethanol
ethene
methene
True or false? A catalyst is required for the hydration of ethene.
True
False
Michael walks in the following order: from Point A, to Point B, and finally to Point C. Which is true?
Distance and displacement are EQUAL
Distance is less than displacement
Displacement is less than distance.
Juan walks in the following order: from Point A, to Point B, to Point C, and stops at Point D. Which is true?
Distance and displacement are EQUAL
Distance is less than displacement
Displacement is less than distance.
Which driver has an equal distance and displacement at B?
1
2
3
Which of the below units is equivalent to kgms-1 ?
Ns-1
Nms
Ns
J/s
A stationary ball is hit by an average force 50N at time of 0.03s. What is the impulse experienced by the body?
1.5Nm
1.5Ns
0.0006Nm
0.0006Ns
The maximum displacement of a body from its equilibrium position is called
period
frequency
displacement
amplitude
A body of mass 3kg moves with a velocity
10m/s. Calculate the momentum of the body.
30kgm/s
3.33kgm/s
0.3kgms
0.03kgms
To every action there is an equal and opposite reaction is called Newton’s
First law of motion
Second law of motion
Third law of motion
Conservation of linear momentum
What is the unit of pressure in SI system of units?
Pa
W
J
Atm
The magnitude of the force required to make an object of mass, m move with speed, v in a circular path of radius, r is given by the expression.
mr/v
mr2/v
mv2/r
mv/r2
A footballer taking a penalty kick applies a force of 100N
for 0.03s on a ball of mass 150g. The ball moves off
with a speed of what?
10m/s
20m/s
30m/s
40m/s
Which of the following is a vector quantity
mass
speed
density
momentum
The time rate of change of momentum is called
weight
gravity
force
impulse
If the value of a certain quantity is recorded as (4±0.36), the maximum percentage error is ___
4 %
9 %
11 %
15 %
If two vectors are anti-parallel then θ = _____
0o
90o
180o
360o
For a particle having a uniform circular motion, which of the following is constant _____.
speed
Acceleration
Velocity
Displacement
If two resistors of 2.1Ω and 5.3Ω are connected in series, then the resultant resistance is
8.4 Ω
7.3 Ω
7.4 Ω
5.2 Ω
Magnetic meridian is the plane _____.
perpendicular to the magnetic axis of Earth
perpendicular to geographic axis of Earth
passing through the magnetic axis of Earth
passing through the geographic axis Earth
The loss of strength of the signal while propagating through the channel is known as_____.
Range
Bandwidth
Attenuation
Noise
A small device having hundreds of diodes and transistors, performing the work of a large number of electronic circuits is called _____.
LED
IC
Solar cell
None of tese
If the value of a certain quantity is recorded as (5±0.45), the maximum percentage error is _____.
4%
9 %
11 %
15 %
If two vectors are parallel then θ = _____.
0o
90o
180o
360o
An object thrown from a moving bus is on example of_____.
Uniform circular motion
Rectilinear motion
Projectile motion
Motion in one dimension
. If two resistors of 9.1Ω and 5.3Ω are connected in series, then the resultant resistance is _____.
18.4 Ω
15.3 Ω
14.4 Ω
11.2Ω
Inside a bar magnet, the magnetic field lines _____.
are not present
are parallel to the cross sectional area of the magnet
are in the direction from N pole to S pole
are in the direction from S pole to N pole
The maximum distance between a source and a destination up to which the signal can be received is called _____.
Range
Bandwidth
Attenuation
Noise
A semiconductor device that changes its resistance when light is incident on it is called _____.
Photo diode
Photo resistor
Solar cell
None of these
A bag contains 5 black, 4 white, and x red marbles. If the probability of picking a red marble is 2/5, find the value of x.
8
10
4
6
What is the probability of picking the letter 'T' from the word OBSTRUCTION?
1/11
2/11
3/11
4/11
The result of rolling a fair die 150 times is summarized in a table. If the number 5 appeared 15 times, what is the probability of obtaining a 5?
3/10
1/5
1/6
1/10
The probability of a student passing any examination is 2/3. If the student takes three examinations, what is the probability that he will not pass any of them?
2/3
4/9
8/27
1/27
The table below shows the distribution of marks of students in a test: Marks: 2 3 4 5 6 7 8 9 Number of students: 3 4 1 0 4 5 2 1 What is the probability of passing the test if the pass mark is 5?
3/5
2/5
7/20
1/5
A bag contains 5 black balls and 3 red balls. Two balls are picked at random without replacement. What is the probability that a black and a red ball are picked?
15/28
13/28
5/14
3/14
The probabilities that events A and B occur are P(A) = 1/5 and P(B) = 1/3. If P(A and B) = 1/15, what is the probability of A or B occurring?
2/15
3/4
7/15
1/15
The probabilities that a man and his wife live for 80 years are 2/3 and 3/5 respectively. What is the probability that at least one of them lives up to 80 years?
2/15
3/15
7/15
13/15
A student has a 2/3 chance of passing a Physics test. If he takes 3 tests, what is the probability that he passes exactly 2 of them?
2/27
3/27
4/27
12/27
A die is tossed once. What is the probability of getting a number greater than 4?
1/6
1/3
1/2
2/3
In how many ways can the letters of the word ACCEPTANCE be arranged?
10! / (2!2!3!)
10! / (2!3!)
10! / (2!2!)
10!
Find the number of ways of selecting 6 out of 10 subjects for an examination.
128
216
215
210
In how many ways can a delegation of 3 be chosen from 5 men and 3 women, if at least 1 man and 1 woman must be included?
10
20
30
40
In how many ways can 9 people be seated if 3 chairs are available?
720
504
336
210
In how many ways can a committee of 2 women and 3 men be chosen from 6 men and 5 women?
100
200
30
50
A final examination requires that a student answer any 4 out of 6 questions. In how many ways can this be done?
15
20
30
45
In how many ways can five people sit round a circular table?
24
60
12
120
How many different 4-digit numbers can be formed from the digits 1, 2, 3, 4, 5 if no digit is repeated?
120
60
20
5
In how many ways can 3 boys and 2 girls be selected from 5 boys and 4 girls?
60
40
20
10
A committee of 3 is to be formed from 4 men and 3 women. How many committees can be formed if at least one woman is included?
A
B
C
D
Which of the following is not a measure of dispersion?
Range
Mean deviation
Mean
Standard deviation
Which of the following is not a measure of dispersion?
Mode
Mean deviation
Range
Interquartile range
Find the variance of a group of data whose standard deviation is 12.34, to the nearest whole number.
150
151
152
153
Calculate the standard deviation of the following scores: 5, 4, 6, 7, and 8.
√2
√3
2
3
The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number.
3
16
38
30
The mean of the numbers 13, 16, x, 18, 21, 2x, 35 is 22. Find the value of x.
16
17
23
Which of the following is not a measure of dispersion?
Mode
Mean deviation
Range
Interquartile range
Calculate the standard deviation of the following scores: 5, 4, 6, 7, and 8.
√2
√3
2
3
Find the variance of a group of data whose standard deviation is 12.34, to the nearest whole number.
A. 150
B. 151
C. 152
D. 153
Which of the following is not a measure of dispersion?
Mode
Mean deviation
Range
Interquartile range
What is the mean of the data: t, 2t - 1, t - 2, 2t - 1, 4t, and 2t + 2?
2t
2t - 1
(2/3)t + 1
2t - (1/3)
Find the median of the numbers: 4, 1, 4, 1, 0, 4, 4, 2, and 0.
0
1
2
4
Find the mean deviation of the numbers: 2, 4, 5, and 9.
(a)
How many students were absent for at least four days?
180
120
110
40
The numbers 5, 8, 6, and k occur with frequencies 3, 2, 4, and 1 respectively. If the mean is 6, find k.
5
6
7
8
Find the median of class intervals: 1–5, 6–10, 11–15, 16–20, 21–25, 26–30, 31–35, 36–40 Frequencies: 2, 4, 5, 2, 3, 2, 1, 1
11.5
12.5
14.0
14.5
The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number.
3
16
38
30
The mean of the numbers 13, 16, x, 18, 21, 2x, and 35 is 22. Find the value of x.
16
17
23
25
Calculate the standard deviation of: 5, 4, 6, 7, and 8.
√2
√3
2
Find the variance of a group of data with standard deviation 12.34 (to nearest whole number).
150
151
152
153
Calculate the relative molecular mass of sodium tetraoxosulphate(VI). [Na = 23, H = 1, S = 32, O = 16]
(a)
Calculate the concentration in g/dm3 of a solution containing 0.01moldm3 of K2CO3. [K = 39, C = 12, O = 16]
0.47
0.67
1.38
1.40
A gas occupies 100cm3at 380mmHg and 310K. What is its volume in cm3 at s.t.p?
30
44
170
210
Calculate the mass in grams of 0.4 mole of carbon atom. (C = 12)
0.40
4.80
11.60
12.00
What volume of 0.40 mol/dm3 H2SO4 will be required to neutralize 20cm3 of 0.10mol/dm3 NaOH solution?
H2SO4 + 2NaOH → Na2SO4 + 2H2O
3.5
2.55
2.5
1.45
The oxidation state of copper in CuCl2 is
+3
+2
+1
-1
How many moles are there in 10g of sodium trixonitrate(V)? [Na = 23, N = 14, O = 16]
1.12
1.00
0.12
0.11
Calculate the percentage of water of crystallisation in FeSO4.7H2O. [ Fe = 56, S = 32, O = 16, H = 1]
56.30
45.30
32.20
27.80
Organic compounds A and B have molecular formula CH3CH2OH and CH3OCH3 respectively. It can be deduced that both
are alkanals
are alkanols
are isomers
have the same structural formula
What is the solubility n moldm-3 of 20g of CuSO4 dissolved in 100g of water at 1800C? [CuSO4 = 159.4]
0.01
0.13
0.25
1.25
2H2 + O2 → 2H2O. From the equation above, how many moles of hydrogen is required to produce 10 moles of water?
1
2
4
10
0.1 Faraday of electricity was passed through a solution of copper(II) tetraoxosulphate(IV). Calculate the mass in grams of copper deposited at the cathode. [Cu = 64]
3.2
6.4
16.00
32.00
Calculate the mass of hydrogen chloride gas formed when 14.2g of chlorine reacts with excess hydrogen. [Cl = 35.5, H = 1]
14.2
14.6
29.2
29.6
A given gas occupies 250cm3 at 850mmHg. At what pressure in mmHg will be the volume be doubled?
250
425
760
1100
Calculate the mass in grams of 0.2 mole of carbon atom. [C = 12]
60
24
2.4
1.2
What is the molecular formula of a hydrocarbon that contains 36g of carbon with vapour density of 22? [C = 12, H = 1]
C2H4
C2H6
C3H6
C3H8
What mass in grams of sodium trioxocarbonate(IV) salt will be dissolved in 1000cm3 of water to produce a concentration of 0.1M? [Na = 23, C = 12, O = 16]
6.4
10.6
20.6
106.0
When alkynes are hydrogenated with two molecules of hydrogen gas, they produce compounds with general molecular formula
CnH2n
CnH2n + 1
CnH2n + 2
CnH2n - 1
Which of the following is a by - product of solvay process?
CaCl2
CaO
CO2
H2O
In an electrochemical series, which of the following anions will discharged the least?
Cl-
Br-
NO3-
F-
Which of the following is not a property of longitudinal waves?
Compression
Refraction
Polarization
Diffraction
The maximum displacement of particles from their equilibrium position is called
Wave velocity
Period
Frequency
Amplitude
The characteristics of waves which enables one to differentiate a high note from low note
Loudness
Pitch
Intensity
Tone
If V is the velocity of a wave, ƛ its wavelength and T its period, the V, ƛ and T are related by the expression
ƛ = VT
ƛ = V/T2
T2= ƛv
V=ƛT
Transverse and longitudinal waves travelling in the same direction in a medium differ essentially in their
Wavelength
Amplitude
Frequency
Direction of vibration of the particle of the medium
A wave of wavelength 0.3m travels 900m in 3.0s, calculate its frequency
300Hz
900Hz
270Hz
1000Hz
A progressive wave equation is represented by Y = A sin (150πt - πx/4). If the phase difference of a progressive wave is 450, the value of x in the equation is
2cm
1cm
4cm
3cm
Determine the distance between consecutive antinodes XX if the wavelength is 60cm
15cm
30cm
60cm
120cm
--------- involves the change in the direction of waves when they bounce off a barrier
Refraction
Reflection
Diffraction
Interference
Which of the following is not correct? Simple examples of first order lever are:
Crowbar
Claw hammer
Plier
Wheel barrow
Which one of the following is an example of third class lever
Knife
Crowbar
Forearm
Plier
A lever whose effort is between the fulcrum and the load is called-----
First class lever
Second class lever
Third class lever
Wheel and axle
The velocity ratio of an inclined plane whose angle of inclination is 300 is---
0.5
5.0
2.0
3.0
In which of the following machine is the effort applied between the load and the fulcrum?
Claw hammer
Plier
Tongs
Nut cracker
A machine, with velocity ratio 2, raises a load of 200N through a vertical distance of 2m and the amount of work required by the machine is 400J. What is the efficiency of the machine?
100%
50%
25%
12.5
In a machine, the mechanical advantage is equal to the velocity ratio when:
Load = effort
Velocity ratio = 1
Efficiency is 100%
Friction in the machine is zero
Calculate the frequency of radio wave of wavelength 600m if the velocity of all e.m.f are in space is 3 x 108m/s
0.01MHz
0.5MHz
5MHz
500MHz
A plane inclined at an angle of 300to the horizontal has an efficiency of 50%. The force parallel to the plane required to push a load of 120N uniformly up the plane is?
150N
120N
30N
45N
A wheel and axle has radii 80cm and 10cm respectively. If the efficiency of the machine is 0.85, an applied force of 1200N to the wheel will raise a load of
8.0N
6.8N
8160N
9600N
Calculate the velocity ratio of a screw jack of pitch 0.3cm if the length of the Tommy bar is 21cm
1/140π
14π
70π
140π
Which of the following value on the absolute scale of temperature is the ice point?
0k
32k
100k
273k
Which one of the following is NOT an example of wind instrument
Clarinet
Guitars
Saxophone
Pipe organ
A man 1.8m tall stands 3m away from a pinhole camera, if the distance between the pinhole and the screen of the camera is 0.3m, calculate the height of the image of the man produced by the camera
18m
0.18m
27m
0.32m
A ray of light makes an angle of 350 with a plane mirror. What is the angle of reflection
700
350
550
650
An object is placed between two mirrors which are inclined at an angle of 1200 and facing each other. Determine the number of images observed in the two mirrors
15
12
3
2
Which of the following property is a consequence of superposition of waves?
Reflection
Refraction
Interference
Polarization
Which of the following statements about wave motion is correct?
Transverse wave do not require a medium for propagation
Longitudinal waves vibrate perpendicular to direction of wave
Electromagnetic waves are transverse waves
All mechanical waves are longitudinal waves
A ray of light is incident on a plane mirror at an angle of 300. Calculate the angle which the reflected ray makes with the surface of the mirror.
1200
600
900
1800
The image in a pin hole camera is always
Enlarged
Upright
Inverted
Blurred
An object is placed between two mirrors which are inclined at an angle of 900 while facing each other. The number of images formed by the two mirrors are
6
2
3
4
The distance between two points in phase on a progressive wave is 5cm. if the speed of the wave is 0.2m/s, calculate its period.
25s
0.22s
0.25s
33s
The distance between two successive crests of a water wave is 1m. If a particle on the surface of the water wave makes two complete vertical oscillations in one second, calculate the speed of the wave
20m/s
2.0m/s
25m/s
1m/s
Radio wave has a velocity of 3 x 108m/s. A radio station sends out a broadcast on a frequency of 800 KHz. The wavelength of the broadcast is
375m
267m
240m
26.7m
A ray of light strikes a plane mirror at a glancing angle of 500. Calculate the angle between the incident and reflected rays.
550
700
800
650
An object is placed in front of two plane mirrors inclined at an angle of Ɵ0. If the total number of images formed is 7, find the value of Ɵ
300
450
510
900
Calculate the position of an object placed in front of a convex mirror having a focal length of 12cm such that an image is formed 6cm away from the mirror.
4.0cm
3.0cm
12.0cm
9.0cm
-------- represents the centre of the sphere of which the mirror forms a part.
Radius of curvature
Centre of curvature
Pole
Principal axis
Which of the following best defines a penumbra
A place where anular eclipse occurs
A place of dark shadows
A place of grey shadows
The centre of the moon
A road sign is an example of --------
Transparent object
Luminous object
Translucent object
Non-luminous object
Loudness of sound depends on
Frequency
Intensity
Overtones
Harmonics
Consider the reaction represented by the following equation: 147N + 42He 178O + 11Z. Z represents
a proton
an electron
a beta particle
helium nucleus
The type of bond formed when 6X and 17Y combine is
metallic
ionic
hydrogen
covalent
If metal M forms a chloride MCl2, then the formula for its trioxocarbonate(IV)salt would be
M3(CO3)2
M(CO3)2
M2CO3
MCO3
How many atoms are contained in 0.6g Na? [Na = 23, Avogadro constant = 6.02 x1023]
1.57 x 1023
1.57 x 1022
3.7 x 1023
3.7 x 1022
Which of the following neutralization reactions will have the same enthalpy change?
I. CH3COOH + NaOH → CH3COONa + H2O
II. HCl + NaOH → NaCl + H2O
III. HCl + NH4OH → NH4Cl + H2O
IV. HNO3 + NaOH → NaNO3 + H2O
I and II only
I and III only
II and III only
II and IV only
The following gases decolorize bromine water except
C2H6
C2H4
C3H6
C2H2
The smallest unit of a polymer is a
dissaccaharide
monomer
dimer
monosaccharide
The process by which protein is converted to amino acid is
polymerization
hydrolysis
hydrogenation
cracking
The production of biogas from the fermentation of waste materials is an example
combustion
incineration
refining
recycling
Alkanoates can be represented as
RCH2OH
RCONH2
RCOOR
RCOOH
Pollution of rivers by domestic waste causes
scarcity of nutrients
an increased level of sediment
increased presence of heavy metals
reduced level of dissolved oxygen
The final product obtained when starch is hydrolysed using a dilute mineral acid is
fructose
glucose
maltose
sucrose
The relative molecular mass of a compound with empirical formula CH2O is [H = 1, C = 12, O = 16]
42
45
126
180
Consider the following reaction equation: CH2 = CH2 + H2 → CH3CH3
An important industrial application of the principle is the
reforming of crude oil
cracking of crude oil
hardening of vegetable oil
fractional distillation of vegetable oil
