ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 3 Motion and Force

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Physics ECAT Pre Engineering Chapter 3 Motion and Force

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Question # 1

The mass of a body measured by a physical balance in a lift at rest is found to be m, if the lift is going up with an acceleration a, its mass will be measured as

Question # 2

Range of a projectile is R, when the angle of projection is 30° . Then, the value of the other angle of projection for the same range, is

Question # 3

The artillery shells travel along parabolic paths under the influence of

Question # 4

Which of the following statements for an object in equilibrium is not true?

Question # 5

When a shall explodes a mid-air, the total momentum of its fragments is

Question # 6

An airplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically above a point A on the ground, a bomb is released from it. The bomb strikes the ground, at point B. The distance AB is

Question # 7

Tick the conservative force:

Question # 8

The projectile attains maximum horizontal range when it is projected at an angle of

Question # 9

A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is

Question # 10

When a horse pulls a cart, the force that makes the horse run forward is the force exerted by

Question # 11

Acceleration of a body at any particular instant during its motion is known as

Question # 12

Which of the following four statements is false?

Question # 13

Which of the following is not a projectile

Question # 14

When brakes are applied to a fast moving car, the passenger will be thrown:

Question # 15

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The linear momentum of the body is defined as
A. p=ma
B. p=1/2ma
C. p=mv
D. p=1/2mv
2 Acceleration in a body is always produced in the direction of :
A. Velocity
B. Weight
C. Force
D. Both B and C
3 The horizontal range of projectile, at a certain place, depends upon
A. the mass of the projectile
B. velocity of projection
C. angle of projection
D. angle as well as velocity of projection
4 The quantity F x t is called as
A. momentum
B. velocity
C. acceleration
D. impulse
5 Linear momentum is a
A. fixed quantity
B. constant quantity
C. scalar quantity
D. vector quantity
6 If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:
A. Force
B. Energy
C. work
D. impulse
7 The path followed by the projectile is known as:
A. Cycle
B. Hyperbola
C. Trajectory
D. Route
8 A boat of mass 40 kg is at rest, A dog of mass 4 kg moves in the boat with a velocity of 10 m/s. What is the velocity of boat?
A. 4 m/s
B. 2 m/s
C. 8 m/s
D. 1 m/s
9 In velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is
A. 8
B. 4
C. 6
D. 7
10 A ball is dropped downwards After 1 second another ball is dropped downwards from the same point. What is the distance between them after 3 seconds
A. 25 m
B. 20 m
C. 50 m
D. 9.8 m

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