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Total questions: 127

Worksheet time: 1hrs 19mins

Name
Class
Date
1.

____________is a million times smaller than the thickest human hair

a)

Atom

b)

Cell

c)

Sand

d)

Compound

2.

Particles possess ___________energy due to constant random motion

a)

Potential

b)

Chemical

c)

Kinetic

d)

Electric

3.

An example of plasma state

a)
b)
c)
d)
4.

Which of the following is highly compressible

a)

Wool

b)

Milk

c)

Sanitizer

d)

Oxygen

5.

Mercury does not wet glass because its adhesive force is greater than its cohesive force.

a)

True

b)

False

6.

Unit of Latent heat is

a)

Jkg

b)

kg/J

c)

J/kg

d)

J

7.

Examples for latent heat of fusion ( there could be more than 1 correct answers)

a)
b)
c)
d)
8.

The specific latent heat of fusion of ice is 336000 J/kg

a)

True

b)

False

9.

During a change in state of matter, the amount of heat energy absorbed causes a change in temperature

a)

True

b)

False

10.

Soft drinks are cooled faster by placing them in ice rather than in water at 0oC.

a)

True

b)

False

11.

A burn caused by boiling water is more serious than a burn caused by steam.

a)

True

b)

False

12.

Icebergs do not melt due to

a)

High latent heat of vaporisation of ice

b)

Low latent heat of Fusion of ice

c)

High latent heat of Fusion of ice

d)

Low latent heat of vaporisation of ice

13.

The picture is an example of

a)

Evaporation

b)

Deposition

c)

Sublimation

d)

Condensation

14.

Jack keeps a bowl of water outside in the morning, in the afternoon he realises that the level of water in the bowl has reduced. This is due to

a)

Boiling

b)

Freezing

c)

Evaporation

d)

Sublimation

15.

Boiling ( More than 1 answer could be correct)

a)

is a fast process

b)

Causes cooling

c)

Takes place only on the surface of the liquid

d)

Is accompanied by formation of bubbles

16.

This process is called

a)

Melting

b)

Freezing

c)

Sublimation

d)

Deposition

17.

If the melting point of a substance is 30oC, then it continues to remain at that same temperature until the entire process of melting is complete

a)

False

b)

True

18.

Evaporation happens at a range of temperatures higher than the boiling point

a)

False

b)

True

19.

Observe the change of state diagram. If the object is solid at P, Then its boiling point is

a)

T20C

b)

T10C

c)

00C

d)

None of the them

20.

Observe the diagram again, Freezing is taking place at

a)

Q to R

b)

S to T

c)

T to S

d)

R to Q

21.

The quantities having both magnitude and direction

a)

scalar quantity

b)

vector quantity

c)

constants

d)

variable quantity

22.

Rate of change of distance is called

a)

velocity

b)

speed

c)

displacement

d)

acceleration

23.

the quantity of motion contained in an object is called

a)

distance

b)

displacement

c)

force

d)

momentum

24.

The SI unit of momentum

a)

m/s

b)

kgm/s

c)

m

d)

none

25.

An object moves with constant speed of 5 m/s along the circumference of a circle .Then

a)

acceleration is zero

b)

acceleration is positive

c)

velocity is zero

d)

None

26.

If an object covers equal distance in equal intervals of time .then its motion is said to be

a)

uniform

b)

nonuniform

c)

accelerated

d)

decelerated

27.

unit of retardation is

a)

m/s

b)

m/s2

c)

m

d)

none

28.

The slope displacement-time graph gives

a)

speed

b)

velocity

c)

acceleration

d)

distance

29.

Area under velocity -time graph gives

a)

speed

b)

acceleration

c)

distance

d)

displacement

30.

The inability of an object to change its state is called

a)

momentum

b)

acceleration

c)

inertia

d)

friction

31.

when mass increases

a)

inertia increases

b)

inertia decreases

c)

momentum increases

d)

both A and C

32.

rate of change of momentum gives

a)

acceleration

b)

force

c)

speed

d)

velocity

33.

An object travelling with speed of 5m/s stops suddenly.the acceleration produced is

a)

zero

b)

positive

c)

negative

d)

None

34.

complete the equation,V2 =

a)

2aS+U2

b)

2aS-U2

c)

ut+1/2 at2

d)

-2aS+U2

35.

In a bus starts passengers falls backward ,

a)

due to inertia of rest

b)

due to inertia of motion

c)

due to inertia of direction

d)

due to lack of friction

36.

if the net force acting on a body is zero

a)

the forces are balanced

b)

the forces are unbalanced

c)

force will produce motion

d)

force will not produce motion

e)

both A and D

37.

The first law states

a)

the quality of force which can produce motion

b)

the quantity of force which can produce motion

c)

the law of inertia

d)

both A and C

38.

while catching the ball cricketer moves his hands backward for reducing

a)

rate of change of momentum

b)

force

c)

reducing pain on hand

d)

all the above

39.

the law of inertia was introduced by

a)

Galileo

b)

Newton

c)

Einstein

d)

Aristotle

40.

momentum is a

a)

scalar quantity

b)

vector quantity

c)

Can be a scalar or vector

d)

None

41.

____ is one of the best reflectors of light.

a)

Gold

b)

Silver

c)

Brass

d)

Aluminium

42.

Reflection of light have___laws.

a)

1

b)

2

c)

3

d)

4

43.

When light is available which image is formed.

a)

Real

b)

Virtual

c)

Erect

44.

If an object is placed at a distance of 10 cm in front of a plane mirror how far would it be from its image.

a)

10cm

b)

20cm

c)

30cm

d)

40cm

45.

Which mirror has a wider field of view?

a)

Convex

b)

Concave

c)

Plane

46.

Which equation related to ohm's law?

a)

V=IR

b)

R=V/I

c)

I=V/R

d)

All of the above

47.

When an obj is placed at focus then which type of image is formed?

a)

Real

b)

Virtual

c)

Inverted

d)

Both (1)and (3)

48.

A ray of light is incident on a plane mirror at an angle of 30°.what is the angle of refrection?

a)

10°

b)

20°

c)

30°

d)

40°

49.

Which type of image formed by plane mirror?

a)

Same size

b)

Erect

c)

Virtual

d)

All of the above

50.

Real image is always

a)

Erect

b)

Real

c)

Inverted

d)

Virtual

51.

Strength of the force is expressed in?

a)

Mass

b)

Weight

c)

Magnitude

d)

Longitudinal force

52.

Leaves or fruits fall on the ground due to

a)

Magnetic force

b)

Electrostatic force

c)

Gravitation force

d)

Muscular force

53.

If you pull your diaphragm down what happens?

a)

air is forced out of your lungs

b)

air goes into your lungs because the pressure increases and sucks it in

c)

air goes into your lungs because the volume increases and so pressure decreases

d)

air goes out because your lungs get smaller and can't hold the air

54.

Which container will have a lower pressure?

a)

Left

b)

Right

c)

I don't know

d)

Both have same

55.

How will this object move?

a)

It won't move

b)

It will move to the left.

c)

It will move to the right.

d)

It will move in both directions.

56.

The shape of the airplane is like a

a)

snake

b)

dog

c)

lion

d)

bird

57.

Lubricants...............

a)

Increase friction

b)

Decrease Friction

c)

Both (a) & (b)

d)

non of these

58.

friction can be reduced by using

a)

(a) oil

b)

(b) grease

c)

(c) powder

d)

(d) all of these

59.

Friction is

a)

(a) foe

b)

(b) friend

c)

(c) both (a) and (b)

d)

(d) none of these

60.

Which of the following is responsible for wearing out of bicycle tyres?

a)

(a) Muscular force

b)

(b) Magnetic force

c)

(c) Frictional force

d)

(d) Electrostatic force

61.

Inner ear also know as ???

a)

cochlea

b)

stirrup

c)

pinna

d)

anvil

62.

In Order To Reduce The Loudness Of A Sound, We Have To :

a)

increase its amplitude of vibration of the sound

b)

Increase its frequency of vibration of the sound

c)

Decrease its frequency of vibration of the sound

d)

Decrease its amplitude of vibration of the sound

63.

Choose The Statements Which Are Incorrect About Noise Pollution:

a)

Loud noise can cause irritation and headache

b)

Loud noise gives energy to all young persons

c)

Loud noise can even damage the ears permanently and cause deafness

d)

Loud noise can cause an ailment called hypertension or high blood pressure.

64.

voice box also known as

a)

stomach

b)

mouth

c)

pharynx

d)

larynx

65.

the no. of oscillations per second is

a)

amplitude of oscillations

b)

frequency of oscillations

c)

pitch of oscillations

d)

none of these

66.
No more energy can be removed from matter at:
a)
its freezing point
b)
0°C
c)
absolute zero
d)
273 K
67.
Heat transfer occurs:
a)
in many directions
b)
both from warm objects to colder ones and from cold objects to warmer ones
c)
only from warm objects to colder ones
d)
only from cold objects to warmer ones
68.

Observe the diagram. Which statement is true about the kinetic energy of the molecules in the containers?

a)

The molecules are moving faster in Diagram A

b)

The molecules are moving slower in Diagram A

c)

The molecules are moving at the same rate in both diagrams

69.
A measurement of the amount of matter in an object. 
a)
Gravity
b)
Weight
c)
Mass
d)
Speed
70.

Which of the following is the correct arrangement of particles in solid?

a)

Particles are widely separated from one another.

b)

The particles are packed slightly less closely together compared to a solid.

c)

The particles are packed closely together.

71.

Which of the following factors do not affect the rate of evaporation?

a)

Temperature of the liquid

b)

Surface area of the liquid

c)

Depth of the liquid

d)

Draught/ movement of air

72.

What happens when two forces act in the same direction?

a)

They cancel each other out.

b)

The stronger one prevails.

c)

Their strengths are added.

d)

Their sum divided by two is the total force.

73.

When an object slows down it is considered...

a)

Positive Acceleration

b)

Final Velocity

c)

Negative Acceleration

d)

Hitting the brakes

74.

Which is the CORRECT Reading?

a)

A

b)

B

c)

C

d)

ALL

75.

Describe the motion of the object at letter B.

a)

at rest

b)

constant speed

c)

speeding up

d)

slowing down

76.

Describe the motion of the object shown in this graph.

a)

at rest

b)

speeding up

c)

slowing down

d)

constant speed

77.

Which graph shows an object slowing down?

a)

A

b)

B

c)

D

d)

E

78.
Person on the left = 45 N
Person on the right = 32 N
What is the net force?
a)
zero N
b)
10 N
c)
77 N
d)
13 N
79.

A brick is resting on a level, smooth surface. When a student applies a horizontal force of 5 N to the brick, the force of friction on the brick is also 5 N. Which statement BEST describes the effect of these two forces on the brick?

a)

The net force on the brick is 0 N, and the brick begins to move.

b)

The net force on the brick is 0 N, and the brick remains at rest.

c)

The net force on the brick is 10 N, and the brick begins to move.

d)

The net force on the brick is 10 N, and the brick remains at rest.

80.

If the acceleration of an object is zero, then which of the following statements are possible in describing its motion?

a)

Object is moving with constant velocity

b)

Object is at rest

c)

Forces acting on the object are balanced

d)

All of above

81.

Question 1: Which force is being applied by a vendor when he is pushing the pushcart?

a)

Muscular force

b)

Magnetic force

c)

Friction

d)

Electrostatic force

82.

How much weight of air is always over your head?

a)

1 kg

b)

1000 kg

c)

100 kg

d)

10 kg

83.

Which force causes a charged balloon to attract another balloon?

a)

Muscular force

b)

Electrostatic force

c)

Magnetic force

d)

Gravitational force

84.

A dropper to fill ink works because of which of the following?

a)

Friction

b)

Magnetic force

c)

Air pressure

d)

Electrostatic force

85.

SI unit of force (a)  

86.

When the driver applies brakes to a car the -----------------

(a)  

87.

The force acting on a unit area on an object

a)

contact force

b)

non contact force

c)

pressure

d)

density

88.

It is easier to cut vegetables with sharp end of knife rather than with its blunt end because

a)

Smaller area provides more pressure for the applied force

b)

smaller area provides less pressure for the applied force.

c)

none of the above

89.

Two tyres of a tractor are very wide and huge because

a)

pressure increase when area increases

b)

pressure reduces when area increases

c)

none of the above

90.

which of the following is not an example for effects of force?

a)
b)
c)
d)
91.

How many colors are there in the spectrum when white light is separated?

a)

6

b)

7

c)

8

d)

9

92.

A Newton is equal to which of the following?

a)

kilogram-meter per second

b)

meter per second squared

c)

kilogram-meter per second squared

d)

kilogram per meter-second

93.

The work done by a friction force is:

a)

always positive

b)

always negative

c)

always zero

d)

either positive or negative depending upon the situation

94.

It is more difficult to walk on a sandy road than on a concrete road because ____________.

a)

Sand is soft and concreter is hard

b)

The friction between sand and feet is more than that between concrete and feet

c)

The friction between sand and feet is less than that between concrete and feet

d)

The sand is grainy but concrete is smooth

95.

Which among the following is an accurate depiction for the deceleration when a car is travelling in a north direction and produces a deceleration of 80 m/s2 to stop?

a)

Westwards, 80 m/s2

b)

Southwards, 80 m/s2

c)

Eastwards, 80 m/s2

d)

Northwards, 80 m/s2

96.

Which among the following activities is not an example of the third law of motion?

a)

Running

b)

Cycling

c)

Skiing

d)

Walking on a boat

97.

Which among the following is a vector quantity?

a)

Mass

b)

Displacement

c)

Temperature

d)

Density

98.

A body is said to have the power of 1 Watt if it does work at the rate of ______.

a)

1 joule

b)

1 joule in 1 second

c)

1 second

d)

1 radian / second

99.

Why can lights travel in a vacuum but not sound?

a)

Light waves are dual in nature

b)

Due to the electromagnetic nature of light waves.

c)

Due to the electromagnetic nature of sound waves.

d)

Speed of sound is very slow than light

100.

A candela is an SI unit for what?

a)

Radioactivity

b)

Luminous intensity

c)

Amount of substance

d)

Inductance

101.

What is the net force of an object when you combine a force of 10 N north with a force of 5 N south?

(a)  

102.

Which type of electromagnetic radiation has the shortest wavelength?

a)

Gamma ray

b)

Radio wave

c)

X-ray

d)

Microwave

103.

What is the rate of acceleration of gravity at the Earth's surface?

a)

6.7 m/s2

b)

7.8 m/s2

c)

9.8 m/s2

d)

11.2 m/s2

104.

Ohm's law describes the relationship between what?

a)

Current and velocity

b)

Current, voltage, and resistance

c)

Frequency, wavelength, and velocity

d)

Kinetic energy and momentum

105.

The first law of thermodynamics is also known as (a)   .

106.

Who discovered that a moving magnet generates electric current known as electromagnetic induction?

a)

Benjamin Franklin

b)

Nikola Tesla

c)

Michael Faraday

d)

Wilhelm Rontgen

107.

Who's third law states that every action has an equal and opposite reaction?

(a)  

108.

Which has the lower temperature: 0 degrees Celsius or 32 degrees Fahrenheit?

(a)  

109.

How many significant figures are in the number 0.00150?

a)

2

b)

3

c)

5

d)

6

110.

How can we calculate the velocity of a vehicle?

a)

Divide the travelled distance by the taken time

b)

Divide the taken time by the travelled distance

c)

Multiply the travelled distance with the taken time

d)

Multiply the taken time by the travelled distance

111.
In the standard model, the particle considered to be an elementary particle is a(n)
a)
proton
b)
neutron
c)
electron
d)
alpha particle
112.
The word "atom" means what?
a)
"indivisible"
b)
"Adam"
c)
"extremely small"
d)
"indestructible"
113.
All atoms consist of mostly empty space.
a)
True
b)
False
114.
Almost all of the mass of an atom is found in what part?
a)
The electron cloud
b)
The nucleus
c)
The protons
d)
The charge
115.
Which of the following is a fundamental particle of the universe?
a)
The proton
b)
The neutron
c)
The electron
d)
They all are fundamental particles
116.
Neutrinos have no charge, do not interact with matter, and are known as "God particles".
a)
True
b)
False
117.
Mass and energy are interrelated and this is shown with Einstein's equation, E=mc2. 
a)
True
b)
False
118.
All of the following are quarks except 
a)
strange
b)
bottom
c)
charmed
d)
fundamental
119.
A proton is made up of two up quarks and one down quark with charges of +2/3, +2/3, and –1/3. 
a)
True 
b)
False
c)
More information is needed
120.
In our universe, bosons carry forces, fermions make up matter. This was from the TedEd lesson.
a)
True
b)
False
121.
If the Higgs field did not exist, matter would not exist. 
a)
True
b)
False
122.

Work is

a)

having a job

b)

movement

c)

energy transfer

d)

energy transfer to an object

123.

The ( ) the force the ( ) work is done

a)

less, more

b)

smaller, more

c)

bigger, more

d)

bigger, less

124.

if something is shifted a long way then there is ( ) work is being done

a)

less

b)

more

c)

same

d)

none

125.

If the object does not move then what is happening

a)

nothing

b)

work

c)

power

d)

no work is being done on the object

126.

the object has to be shifted or rearrange for work to occur

a)

true

b)

false

127.

for work to occur the object has to have a constant force causing the object to move in the same direction

a)

False

b)

True

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