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

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

Question # 2

A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be

Question # 3

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 # 4

When a shall explodes a mid-air, the total momentum of its fragments is

Question # 5

The mass of a body measured by a physical balance in a lift at rest is found to be m, if the lift is going up with an acceleration a, its mass will be measured as

Question # 6

When we consider the average velocity of a body, then the body is moving in

Question # 7

Change in momentum is one second called.

Question # 8

Root out the conventional source of energy:

Question # 9

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

Question # 10

The projectile attains maximum horizontal range when it is projected at an angle of

Question # 11

The distance covered by a body in unit time is called.

Question # 12

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 13

When a body is moving on a surface, the force of friction is called

Question # 14

A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when

Question # 15

During the projectile motion, the horizontal component of velocity

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:
A. 100 m/sec
B. 140 m/sec
C. 1960 m/sec
D. 196 m/sec
2 The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?
A. 400 m
B. 300 m
C. 200 m
D. 100 m
3 If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of
A. 20 m
B. 400 m
C. 1440 m
D. 2880 m
4 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
5 A non-inertial frame of reference is that frame of reference in which
A. a = 0
B. a > 0 or a < 0
C. v = 0
D. none of them
6 Laws of motion are not valid in a system which is
A. inertial
B. non-interial
C. at rest
D. moving with uniform velocity
7 A body walks to his school at a distance of 6 km with a speed of 2.5 km/h and walks back with a constant speed of 5 km/h. His average speed for round trip expressed in km/h is
A. 24/13
B. 10/3
C. 3
D. 4,8
8 The expression F x t is called impulse if the time 't' is
A. zero
B. very large
C. very small
D. infinite
9 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
10 The projectile motion is composed of
A. horizontal motion only
B. vertical motion only
C. horizontal and vertical motion
D. none of them

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