Font size
WorksheetsSENIOR 2024 OGUN STATE STAN SCIENCE PREP QUIZ
Total questions: 97
Worksheet time: 2hrs 45mins
What is
the Bearing
of A
from B?
The Midpoint Formula is:
The average of the x and y coordinates
The distance between the two coordinate points
The distance on the x and y axis
The average of many points
Find the coordinate of the midpoint of the segment with the given endpoints J(-6, -12) and K(-18, 22).
M (5, -12)
M (-12, 5)
M (-6, 17)
M (17, -6)
In a population of five university students with GPAs of 2.5, 2.3, 1.7, 1.4, and 1.1, a sample of three students are considered. What would be the standard deviation of the resulting sampling distribution?
0.53
0.41
0.35
0.22
The number of foam fingers sold at the Kennedy Center from 1900 to 2004 can be modeled by S = 2t2 + 2t - 1, where t is the number of years since 1900. How many foam fingers were sold in 1976?
11,628
11,703
151
5,775
If the terminal side of an angle in standard position coincides with one of the axes such as 90°, 180°, 270° or 360°, it is called a _____.
coterminal angles
radian
quadrant angle
angle
If two solid hemispheres of same base radii r, are joined together along their bases, then curved surface area of this new solid is
4πr2
6πr2
3πr2
8πr2
If a, b and c are positive integers, then (a – b –c)3 – a3 + b3 + c3 is always divisible by
Only (a+b)
Only (b+c)
3(a-b)
3(a+b)(b+c)(a+c)
(a+a1)2−(a−a1)2=
1
2
3
4
what is the probability getting face card or Heart from well-shuffled pack of 52 playing cards?
25/52
13/52
11/52
52/11
The focal length of the concave mirror in the experimental set up shown below is :
10.2 cm
11.0 cm
11.4 cm
12.2 cm
What is nature of the image
(a)
Which is the uses of combination of lens ?
Increase the magnification
Highlight the object
headlight of vehicle
Reduce the magnification
An object is placed at 2f1 in front of the convex lens. Where is the image formed?
(a)
The absolute refractive index of medium is always
1
0
Less than 1
Greater than one
A convex lens of focal length 20cm produces a real image of the object when it is 30 cm away. find position and magnifications of the image?
(a)
Which has least refractive index ?
Water
Air
Glass
Kerosene
Which of the following lenses would you prefer to use while reading a small letters found in the dictionary ?
A convex lens lens of focal length 50 cm
A concave lens of focal length 50 cm
A convex lens of focal length 5 cm
A concave lens of focal length 5 cm
In optical fibres the principle used is
Scattering
Total external Reflection
Refraction
Total internal reflection
Optical density of medium depends on
Density of medium
Thickness of medium
velocity of light in that medium
None
A convex lens is distinguished from a concave lens by the property of
Divergence
Linear propagation
Convergence
Looming
What is dioptre?
An object moves at a constant speed of 5 m/s. This means that the object:
Increases its speed by 5 m/s every second
Decreases its speed by 5 m/s every second
Doesn’t move
Has a positive acceleration
Moves 5 meters every second
Starting from the origin, a person walks 8 km east during first day, and 5 km west the next day. What is the net displacement of the person from the initial point in two days?
6 km east
3 km east
10 km west
5 km west
11 km west
A car and a delivery truck both start from rest and accelerate at the same rate. However, the car accelerates for twice the amount of time as the truck. What is the traveled distance of the car compared to the truck?
half
same
twice
four times
quarter
What is the acceleration during the first five seconds?
0 m/s^2
1m/s^2
4m/s^2
9 m/s^2
20 m/s^2
As shown to the right, a ball is thrown straight up from point A it
reaches a maximum height at point B and falls back to point C.
Which of the following is true about the direction the ball’s velocity
and acceleration between A and B?
velocity down, acceleration up
velocity up, acceleration down
velocity up, acceleration up
velocity down, acceleration down
velocity zero, acceleration zero
As shown to the right, a ball is thrown straight up from point A it
reaches a maximum height at point B and falls back to point C.
Which of the following is true about the direction the ball’s velocity
and acceleration between A and B?
velocity down, acceleration up
velocity up, acceleration down
velocity up, acceleration up
velocity down, acceleration down
velocity zero, acceleration zero
What property of water allows it to flow freely and create surface tension?
High heat capacity
Good solvent
Cohesion
Adhesion
What property of water allows it to stick to other polar surfaces?
High heat capacity
Good solvent
Cohesion
Adhesion
What property of water allows it to absorb a large amount of heat without a great change in temperature?
High heat capacity
Good solvent
Cohesion
Adhesion
What type of bond forms when atoms share electrons?
Ionic bond
Covalent bond
Hydrogen bond
Polar bond
What is the valence shell of an atom?
The outermost energy shell
The innermost energy shell
The energy shell with the most electrons
The energy shell with the least electrons
What is an isotope?
Atoms of the same element that differ in the number of neutrons
Atoms of the same element that differ in the number of protons
Atoms of different elements that have the same number of neutrons
Atoms of different elements that have the same number of protons
What is the mass number of an element?
The number of protons
The number of neutrons
The number of electrons
The number of protons and neutrons
What is the atomic number of an element?
The number of protons
The number of neutrons
The number of electrons
The number of protons and neutrons
What is the definition of an element?
A substance that cannot be broken down into substances with different properties
A substance that can be broken down into substances with different properties
A substance that is composed of one type of atom
A substance that is composed of protons, neutrons, and electrons
Ready for a brain teaser? Can you tell me what Biology is all about?
Is it the study of rocks, minerals, and tectonics?
Or maybe it's the study of planets, stars, and galaxies?
Could it be the study of life including cells, animals, and plants?
Or is it the study of computers, mobile devices, and Bluetooth?
Ready to be a Lab Superstar? What's your PRO strategy? Choose all that apply.
Donning your superhero gear (goggles on, hair tied back, etc)
Being the responsible/respectful hero (read directions, complete lab)
Taking ownership like a true leader (read directions, come prepared)
Keeping the spirit high (fun and talkative with lab group)
Going rogue (yelling and pushing lab group)
Imagine you're in the lab and something unexpected happens! What's your next move?
Alert the teacher right away
Wait until the end of class to mention it
Have your mom send an email to the teacher later
Keep it to yourself
Imagine you're a tech wizard in class! What can you do?
Grab any Chromebook and surf any website I fancy
Use any Chromebook to explore educational websites
Use my very own assigned Chromebook and browse any website I like
Use my personal Chromebook to dive into educational websites
Imagine you're a scientist and a natural disaster just happened. What's the best thing you could do?
Quick, hide under the desk!
Start asking some really good questions
Run as far away as possible
Time to play some video games
Can you guess what happens to the length of particles when their weight increases, based on the data in this funky graph?
Does the length shrink like a scared turtle when the weight goes up?
Or does the length stretch out like a lazy cat in the sun as the weight increases?
Or maybe, just maybe, the length of particles couldn't care less about their weight?
C. When a species changes overtime.
Whales have pelvic bones. What type of structure does this best represent?
Homologous structure
Analogous structure
Vestigial structure
None of the above
What is Cyber crime?
A complimentary word or derogatory term for someone who accesses a network illegally.
A crime that involves a computer and a network.The computer may have been used in the commission of a crime, or it may be the target.
A program that copies itself repeatedly.
A tool that is used for malicious acts.
Which is one of these examples is not an example Cyber Crime
Cyberterrorism
Trojan horse
Cyberextortion
Fraud e.g. credit card fraud
What is DDoSing?
A computer attack that uses a number of hosts to overwhelm a server, causing a complete system crash.
A virus that can cause a loss of important files
A program that hides in a computer and allows someone to take control of someone computer from a different location.
A piece of code that is made, which allows the user to get back into system that has been hacked
Who do business and organizations hire to identify security risks and implement safeguards from future attacks?
Police
Private Contractors
Convicted individuals of computer crimes
The Government
He described the analytical engine
Charles Babbage
Konrad Zuse
Alan Turing
Bill Gates
Computer system hardware don’t include
Exit device
Arithmetic logic unit
Input device
Output device
Three types of computers are
Analog, digital, physical
Analog, digital, hybrid
Analitical, digital, hybrid
Analog, digital
What is Software?
It is a set of devices
It is a set of circuits
It is a collection of instructions that can be "run" on a computer
It is a mathematical parts of a computer system
What is one advantage of a renewable energy source?
It is cost-effective
It is abundant
It produces less pollution
It is easily accessible
How can agriculture contribute to alternative energy?
By using windmills on farms
By using coal as a fuel source
By using nuclear power plants
By using natural gas as a fuel source
What factors influence fuel choice?
Fuel consumption and cost
Fuel consumption and availability
Fuel availability and cost
Fuel availability and efficiency
What was an advantage of the Neolithic lifestyle?
Protection from enemies
Nomadic life was easier
Livestock was unsustainable
Only men could be hunters and farmers
Mountainous areas in thd Caribbean are difficult to farm because:
Few people live there
There is insufficient rainfall
The terrain is too steep to use tractors
It is too windy
The stealing of agricultural produce is refered to as:
Teifing
Tenure
Praedial Larceny
Fragmentation
Which of the following are Problems affecting regional agriculture?
Urban to rural drift
Topography
Large amounts of Land
Pesticide resistance
Gender issues
Contract labour is most likely to be used by farmer for:
Daily milking of cows
Land preparation
Fertiliser application
Harvesting the crop
SI unit for distance
miles
centimeters
meters
inches
SI unit for time
seconds
minutes
hours
days
Formula for velocity
v = d*t
v = d/t
v = m*t
v = m/t
Formula for acceleration
a = (vf-vo)/t
a = t/(vf-vo)
a = t*(vf-vo)
a = t*d
SI unit for mass
kilograms
grams
pounds
ounces
SI unit for force
Joules
Watts
Newtons
meters
Formula for force
F = m*a
F = m/a
F = d*a
F = d/a
SI unit for energy
Joules
Watts
Newtons
meters
Formula for work
W = F*d
W = F/d
W = F*m
w = F/m
Formula for kinetic energy
KE = m*g*y
KE = 21 m*v^2
KE = F*d
KE = W/t
Formula for potential energy
U = m*g*y
U = 21 m*v^2
U = F*d
U = W/t
Formula for spring constant
k = -F/d
k = F/d
k = -F*d
k = F*d
Formula for elastic potential energy
Us = m*g*y
Us = 21 k*x^2
Us = F*d
Us = W/t
Formula for total mechanical energy
TME = Ki-Kf+Ugi-Ugf+Usi-Usf+W
TME = W
TME = Ki+Kf+Ugi+Ugf+Usi+Usf+W
TME = Ki-Kf-Ugi-Ugf-Usi-Usf-W
SI unit for power
Watts
Joules
Newtons
Meters
Formula for power
P = W/t
P = E/t
P = W*t
P = E*t
Definition of work
The amount of energy transferred when an object is moved over a distance by an external force in regards to the direction of the displacement.
The rate of energy transferred per second
The amount of energy transferred in motion
The amount of energy an object has at rest / before motion
Definition of power
The amount of energy transferred when an object is moved over a distance by an external force in regards to the direction of the displacement.
The rate of energy transferred per second
The amount of energy transferred in motion
The amount of energy an object has at rest / before motion
Definition of kinetic energy
The amount of energy transferred when an object is moved over a distance by an external force in regards to the direction of the displacement.
The rate of energy transferred per second
The amount of energy transferred in motion
The amount of energy an object has at rest / before motion
Definition of potential energy
The amount of energy transferred when an object is moved over a distance by an external force in regards to the direction of the displacement.
The rate of energy transferred per second
The amount of energy transferred in motion
The amount of energy an object has at rest / before motion
When you make a dilution, which of these values remains constant?
The molarity (M)
The total moles of solute
The volume (V)
The concentration
How do we make a dilution?
Add more solute
Remove solute
Remove solvent
Add more solvent
A solution that has water as the solvent is called a(n).....
Aqueous Solution
Water-Based Solution
Organic Solution
Dilute Solution
As we dilute a solution.....
The volume increases and the molarity (M) increases
The volume increases and the molarity (M) decreases
The volume decreases and the molarity (M) increases
The volume decreases and the molarity (M) decreases
What is the molarity of a solution containing 400 g of CuSO4 (FM: 159.6 g/mol) in 4.0 L of solution?
100 M
1.6 M
0.626 M
0.01 M
How many moles of solute are present in 50.0 mL of 0.20M KNO3?
10.0 moles solute
0.05 moles solute
1.00 moles solute
0.01 moles solute
How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?
7.5 mL
15 mL
1333 mL
200 mL
How many mL of 1.0M KBr solution would you need to prepare 250 mL of a 0.2M dilution?
175 mL
250 mL
50 mL
5 mL
What would the molarity of a solution be if you took 10 mL of a 13M stock solution and made a 300 mL solution?
390M
230M
0.43M
0.26M
You are adding a chlorine solution to a swimming pool. The stock solution of chlorine is 1000M. Your swimming pool (75,000 L) needs to be at a concentration of 0.1M. How much of the stock solution should you add?
7500 L
.75 L
750 L
7.5 L
