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

When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.

Question # 2

The motion in a plane is the motion in

Question # 3

The collision in which KE is conserved but momentum is not conserved is called:

Question # 4

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

Question # 5

If the instantaneous velocity of a body does not change. the body is said to be moving with

Question # 6

An inertial frame of reference is that frame of reference in which

Question # 7

A body is thrown from a height h with speed u, it hits the ground with speed V

Question # 8

Acceleration produced in a body by the force varies

Question # 9

One KWh is equal to:

Question # 10

If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:

Question # 11

Acceleration in a body is always produced in the directin of:

Question # 12

Which of the following four statements is false?

Question # 13

The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:

Question # 14

If the acceleration of a body is not uniform, then velocity-time graph will be:

Question # 15

Tick the conservative force:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 When a body is moving on a surface, the force of friction is called
A. Static friction
B. Dynamic friction
C. Limiting friction
D. Rolling friction
2 A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after
A. 10 s
B. 20 s
C. 5 s
D. 40 s
3 During the projectile motion, the horizontal component of velocity
A. changes with time
B. remains constant
C. becomes zero
D. decreases with time
4 The quantity F x t is called as
A. momentum
B. velocity
C. acceleration
D. impulse
5 An inertial frame of reference is that frame of reference in which
A. a = 0
B. a > 0
C. a < 0
D. all of them
6 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
7 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
8 The product of force and time is called change in:
A. Momentum
B. Impulse
C. Force
D. Both a and b
9 When the surfaces are coated with a lubricant, then they
A. Stick to each other
B. Slide upon each other
C. Roll upon each other
D. None of these
10 Bodies failing freely under gravity provide good example of motion under
A. non-uniform acceleration
B. uniform acceleration
C. variable acceleration
D. increasing acceleration

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