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

A typical rocket consists of fuel

Question # 2

The path followed by the projectile is known as:

Question # 3

A ball is dropped from a height of 4.2 meters. To what height it will rise if there is no loss of KE after rebounding?

Question # 4

Newton's laws are adequate for speeds that are

Question # 5

When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is

Question # 6

Body which falls freely under gravity provides good example of motion under:

Question # 7

Work done along a closed path in a gravitational field is:

Question # 8

The path described by a projectile is called its

Question # 9

When a bicycle is in motion, the frictional forces exerted by the ground are

Question # 10

Ethanol (alcohol) is a type of:

Question # 11

The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to

Question # 12

If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)

Question # 13

A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

Question # 14

Slope of velocity time graph represents:

Question # 15

If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have
A. different values
B. same values
C. zero valves
D. constant valves
2 Laws of motion are not valid in a system which is
A. inertial
B. non-interial
C. at rest
D. moving with uniform velocity
3 A certain force gives an acceleration of 2 m/sec2to a body mass 5 kg. The same force would give a 20 kg object an acceleration of:
A. 0.5 m/sec2
B. 5 m/sec2
C. 1.5 m/sec2
D. 9.8 m/sec2
4 The quantity F x t is called as
A. momentum
B. velocity
C. acceleration
D. impulse
5 Which one of the following is dimensionless:
A. Acceleration
B. Velocity
C. Density
D. Angle
6 The discuss used by athlete has a mass of 1 kg, its weight in newton is
A. 9.8 N
B. 80 N
C. 98 N
D. 100 N
7 A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:
A. 20 minutes
B. 48 minutes
C. 10 minutes
D. 5 minutes
8 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)
A. 9.8 m
B. 14.7 m
C. 4.9 m
D. 19.6 m
9 Which quantity has the same dimension as that of impulse?
A. KE
B. Power
C. Momentum
D. Work
10 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

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