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

Acceleration of a body is positive, if the velocity of the body is

Question # 2

The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is

Question # 3

Swimming becomes possible because of______law of motion.

Question # 4

A man sitting in a bus travelling in a direction from west to east with a speed of 40 km/h observes that the rain drops are falling vertically down. To the another man standing on ground the rain will appear

Question # 5

Acceleration produced in a body by the force varies

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

In equation F=ma, then mass 'm' is

Question # 8

A lift is moving up with acceleration equal to 1/5 of that due to gravity. The apparent weight of a 60 kg man standing in lift is

Question # 9

During the upward motion of the projectile, the vertical component of velocity:

Question # 10

If two bodies of equal masses moving in the same direction collide elastically, then their velocities.

Question # 11

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

Question # 12

The consumption source if energy is:

Question # 13

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

Question # 14

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

Question # 15

If the water falls from a dam into a turbine wheel 19.6 m below, then the velocity of water at the turbine, is (Take g=9.8 m/s2)

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The quantity F x t is called as
A. momentum
B. velocity
C. acceleration
D. impulse
2 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
3 During the upward motion of the projectile, the vertical component of velocity.
A. Decreases
B. Increases
C. Remains constant
D. None of these
4 Change in momentum is one second is called:
A. Impulse
B. Force
C. Energy
D. Work
5 When brakes are applied to a fast moving car, the passengers will be thrown:
A. Forward
B. Backward
C. Downward
D. None of these
6 When a horse pulls a cart, the force that makes the horse run forward is the force exerted by
A. The horse on the ground
B. The horse on the cart
C. The ground on the horse
D. The ground on the cart
7 The effect of applying a force on a moving body is to change
A. its direction of motion only
B. its speed of motion only
C. both the direction and speed of motion
D. its inertia only
8 The direction of the linear momentum is the direction of
A. speed
B. velocity
C. weight
D. none of them
9 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
10 Distance covered by a freely failing body n the first second of its motion will be:
A. 4.9 m
B. 9.8 m
C. 19.6 m
D. 29.4 m

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