ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

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

Try The 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

What must be changing when a body is accelerating uniformly?

Question # 2

When a force is applied on a body, several effects are possible Which of the following effect could not occur?

Question # 3

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?

Question # 4

A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of:

Question # 5


Swimming becomes possible because of______law of motion:

Question # 6

Ethanol (alcohol) is a type of:

Question # 7

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

Question # 8

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

Question # 9

The second law gives the relationship between

Question # 10

A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is

Question # 11

The short distance between two points direction from its initial point to final point is called:

Question # 12

A mass of 5kg moves with an acceleration of 10m s-2force applied is

Question # 13

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/ss)

Question # 14

A ball of mass m moving with uniform speed collides elastically with another stationary ball. The incident ball will lose maximum kinetic energy when mass of the stationary ball is

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 When a bicycle is in motion, the frictional forces exerted by the ground are
A. In the forward direction on both the wheels
B. In the backward direction on both the wheels
C. In the forward direction on the front wheel and the backward direction on the rear wheel
D. In the backward direction on the front wheel and the forward direction on the rear wheel
2 The quantity F x t is called as
A. momentum
B. velocity
C. acceleration
D. impulse
3 For a fixed force, larger is the mass of a body the
A. greater is its acceleration
B. smaller is its acceleration
C. smaller is its weight
D. zero is its acceleration
4 A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is
A. Moving forward and gaining speed
B. Moving forward and losing speed
C. Moving forward with uniform speed
D. Moving backward with uniform speed
5 A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
6
Swimming becomes possible because of______law of motion:
A. First
B. Second
C. Third
D. None of these
7 Graphs which are used to illustrate the variation of velocity of an object with time are called
A. distance time graphs
B. speed time graphs
C. velocity time graphs
D. acceleration time graphs
8 Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?
A. The faster one
B. Depends on their mass
C. The slower one
D. Both will reach simultaneously
9 Distance traveled by a body falling from rest in the first, second and third second is in the ration of
A. 1 : 2 : 3
B. 1 : 3 : 5
C. 1 : 4 : 9
D. None of the above
10 A typical rocket consumes about
A. 100 kg s-1of fuel
B. 1000 kg s-1of fuel
C. 10000 kg s-1of fuel
D. 100000 kg s-1of fuel

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