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WorksheetsIX STD SCIENCE QUIZ CUM EXAMINATION 2021
Total questions: 80
Worksheet time: 1hrs 7mins
The total length of the path traversed by an object is called
displacement
velocity
distance travelled
none of these
The area under velocity-time graph gives
acceleration
displacement
speed
force
If a body covers unequal distance in equal equal intervals, then it is said have
uniform motion
non-uniform motion
uniform circular motion
none of these
The distance and displacement of the object when it is subjected to circular motion and reaching the diametrically opposite end are respectively ( R being the radius of circular path)
2 π R & 2R
2R & 2 π R
R & π R
π R & 2R
Acceleration is a vector quantity, true or false?
true
false
Pick the odd one that does not belong to the group
acceleration
retardation
deceleration
negative acceleration
What does the graph above represents?
stationary object
object moving with uniform velocity
Object moving with uniform acceleration
none of these
Choose the correct statement
The magnitude of average velocity is always greater than the speed of the particle
The magnitude of average velocity is always equal to magnitude of average speed
The Magnitude of average speed is always less than average speed
The magnitude of average velocity is always less than or equal to average speed.
A freely falling body is an example for
One dimensional motion
Two dimensional motion
Three dimensional motion
Curvilinear motion
The velocity of an object at any particular instant of time is called
average velocity
uniform velocity
constant velocity
instantaneous velocity
When a body moves with constant velocity, its acceleration is
unity
zero
greater than unity
negative
The time taken by the car to cover a distance 250 meter when it moves with a speed of 25m/s is
5 seconds
10 seconds
15 seconds
100 seconds
Action and reaction are the two two force act on
single body in same direction
single body in opposite direction
two different bodies in same direction
two different bodies in opposite direction
Mass is a measure of
inertia of the body
momentum of the body
net force acting on the body
none of the above
The expression for momentum in terms of mass and velcoity is given by
p=m/v
m=pv
p=mv
none of these
Newton's first law of motion is also called as
law of momentum
the fundamental law
law of inertia
law of conservation of energy
Recoil velocity of the gun is an example for
conservation of energy
power of the gun
conservation of momentum
none of the these
The person in the bus will fall forward when breaks are applied due to
Inertia of rest
inertia of motion
inertia of direction
change of momentum
The net force acting in this case is
700 N to the right
700 N to the left
100 N to the right
100 N to the left
Large force acting on the body for short interval of time is called
contact force
impulse
friction
contact force
Gravitational force is an example for non-contact force. True or False?
True
False
Frictional force is an example for
Opposing force
Contact force
both (a) and (b)
neither (a) nor (b)
The SI unit of force is
(a)
What is the force acting on the body of mass 1kg when it moves with an acceleration of 1m/s2?
0 N
1N
10N
100N
The weakest force that exist in nature is
Gravitational force
Magnetic force
nuclear force
electrical force
The value of g on the surface of earth increases with increase of height. True or False?
True
False
The SI unit of Relative density is
kg/m
kg/m2
kg/m3
unitless
The relation between g and G is
g=GMR
g=GM/R
g=GM/R2
g=R/GM
Gravitational force of attraction between two bodies depends on
mass of the two bodies
separation between the two bodies
both (a) and (b)
neither (a) nor (b)
Newtons Law of Gravitation is also called Inverse
Square Law because
It is independent of mass
It is independent of distance
It is applicable for all types of bodies
It varies inversely as square of the distance
Newton's Law of Gravitation is also called (a) Law of Gravitation.
The value of 'G' (Universal Gravitation Constant) is given by
9.8 ms-2
6.67 X 10-11 Nm2/kg2
1000kgms-2
Unity
The SI unit of pressure, acceleration and momentum are respectively
ms-2, kgms-1, pascal
pascal, ms-2, kgms-1
ms-2, pascal, kgms-1
kgms-1, pascal, ms-2
(a) is the instrument used to measure atmospheric pressure
A car moving with a speed of 35m/s is brought to rest within a distance of 200m. The time taken by the car to stop is
10.4 seconds
11.4 seconds
1.14 second
14.1 seconds
Particles of matter are continuously moving. Hence they possess
potential energy
kinetic energy
heat energy
light energy
The SI unit of volume is (a)
mass per unit volume of a substance is called its (a)
The change of state directly from solid to gas without changing into liquid is called
Fusion
Sublimation
Condensation
Vaporization
Solid carbon-di-oxide is also known as
(a)
The temperature at which a solid melts to become a liquid at atmospheric pressure is called
(a)
During summer, the water kept in an earthen pot becomes cool due to the phenomenon of
Diffusion
Transpiration
Osmosis
Evaporation
What does the process 'Z' in the diagram represents?
sublimation
evaporation
condensation
Fusion
Which of the following has the strong inter-particle force at room temperature?
Oxygen
Water
Bromine
Iron
Which of the following can't be considered as form of matter?
Atom
Water
Humidity
Electron
The boiling point of water at sea level is
00 C
273 K
373 K
2730C
The method used to separate butter from cream is
Centrifugation
Fusion
Diffusion
Evaporation
An example for colloid is
Iodine
Smoke
Salt
Oxygen
The metal in liquid state at room temperature is
Sodium
Potassium
Mercury
Bromine
The solute and the solvent in tincturing of iodine are respectively are Iodine and Alcohol. True or False?
True
False
The continuous zig-zag movement of colloidal particles in a dispersion medium is called
Dispersion
Tyndall Effect
Brownian Movement
Oscillation
The non-metal which is a good conductor of electricity is
Aluminum
Silicon
Graphite
Gold
When two liquids do not mix, they form separate layers and are known as
Miscible Liquid
Immiscible Liquid
Saturated Liquid
Supersaturated Liquid
Which of the following is a physical change?
Burning of magnesium
Exposure of iron to moisture
Dissolution of sugar in water
Formation of compound
Gases are separated from each other by
Fractional Evaporation
Fractional Distillation
Fractional Crystallization
Fractional Sublimation
The process used to separate oil is
Distillation
Sublimation
Separating Funnel
Chromatography
One common method used to separate dyes is
(a)
Filtration can be used to separate
solids from solids
liquids from solids
liquids from liquids
liquids from gases
J.J.Thomson discovered
proton
electron
neutron
positron
The nucleons are
protons and electrons
neutrons and electrons
protons and neutrons
none of these
Isotopes of cobalt is used in the treatment of
(a)
The particles of an atom that have no charge are
(a)
The valency of Al with atomic number 13 is
3
2
4
1
The electronic distribution of Ca atom (atomic no=20) is
2,8,2,8
2,8,8,2
8,2,8,2
8,2,2,8
The atomic theory is proposed by
John Dalton
J.J.Thomson
Neil Bohr
Chadwick
N-Shell have _____________ number of electrons.
32
23
18
8
A valence shell is noting but the
third shell
second shell
First shell
Outermost shell
The heaviest fundamental particle is
Electron
Proton
Neutron
Positron
Which of the following is the correct electronic configuration of Sodium?
2,8
8,2,1
2,1,8
2,8,1
A group of cells having a common origin and perform a similar function are called
Cell
Tissue
Organ
System
The fluid connective tissue is
Bone
Cartilage
Blood
WBC
The parts of the neuron as labelled in the diagram are respectively
Axon Terminal, Myelin Sheath, Cell body, Dendrite, Nucleus
Nucleus, Dendrite, Axon Terminal, Cell Body, Myelin Sheath
Dendrite, Cell Body, Nucleus, Myelin Sheath, Axon Terminal
Cell Body, Nucleus, Myelin Sheath, Dendrite, Axon Terminal
Tendon Connects
Bone to Bone
Muscle to Bone
Muscle to Muscle
All of these
Complex permanent tissue consists of
Parenchyma
Xylem and Phloem
Sclerenchyma
Xylem
Fats in the human body are stored as
Cuboidal Epithelium
Adipose
Neuron
Bones
The (a) meristem helps to increase the girth of the stem or root.
The husk of coconut is composed of (a) tissue.
Two kidney shaped (a) cells enclose the stomata.
Which of the following has dead cells?
Parenchyma
Collenchyma
Sclerenchyma
All of these
A person met with an accident in which two long bones of his hand were dislocated. Which among the following may be the possible reason for this?
Tendon breaks
Break of skeletal muscles tissue
Ligament breaks
Areoelar tissue breaks
