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

Newton's first law is also called:

Question # 2

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

Question # 3

The area under line velocity-time graph is numerically equal to the

Question # 4

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Question # 5

Root out the conventional source of energy:

Question # 6

If d is the displacement of the body in time t, then its average velocity will be

Question # 7

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

Question # 8

If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have

Question # 9

Laws of motion are not valid in a system which is

Question # 10

An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then

Question # 11

Change in momentum is one second called.

Question # 12

Two bodies of masses 1 kg and 5 kg are dropped gently form the top of a tower. A a point 20 cm from the ground both the bodies will have the same

Question # 13

A body whose momentum is constant must have constant

Question # 14

A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after

Question # 15

Flight of rocket in the space is an example of

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.
A. Becomes half
B. Becomes zero
C. Ramains same
D. Becomes double
2 Root out of the conventional source of energy:
A. Energy from biomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
3 In the expression F x t, the force F is
A. total force
B. instantaneous force
C. average force
D. all of them
4 By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second ( g=10m/s2)
A. 58.8 m/s
B. 49 m/s
C. 65 m/s
D. 19.6 m/s
5 During the projectile motion, the horizontal component of velocity
A. changes with time
B. remains constant
C. becomes zero
D. decreases with time
6 A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be:
A. 10 m/sec2
B. 20 m/sec2
C. 30 m/sec2
D. Zero
7 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
8 A body whose momentum is constant must have constant
A. Acceleration
B. Velocity
C. Force
D. None of these
9 Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?
A. Their range will be same
B. Their maximum height will be same
C. Their landing velocity will be same
D. Their time of flight will be same
10 Distance covered by a freely falling body in 2 sec will be
A. 4.9 m
B. 19.6 m
C. 29.2 m
D. 44.1 m

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