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

Which quantity has the same dimension as that of impulse?

Question # 2

A body whose momentum is constant must have constant

Question # 3

The SI units of momentum is

Question # 4

Rate of change of momentum is called

Question # 5

The entity which measures the quantity of motion in a body is called

Question # 6

The horizontal range of projectile, at a certain place, depends upon

Question # 7

For a fixed force, larger is the mass of a body the

Question # 8

An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow

Question # 9

When a bicycle is in motion but not pedaled, the force of friction exerted by the ground on the two wheels is such that it acts

Question # 10

Which one of the following is dimensionless.

Question # 11

A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:

Question # 12

Bodies failing freely under gravity provide good example of motion under

Question # 13

When a person jumps off the ground, the reaction force of the ground is

Question # 14

Laws of motion are not valid in a system which is

Question # 15

Acceleration produced in a body by a force varies

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1
Swimming becomes possible because of______law of motion:
A. First
B. Second
C. Third
D. None of these
2 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
3 A car travels first half distance between two places with a speed of 30 km/h and remaining half with a speed of 50 km/h. The average speed of the car is
A. 37.5 km/h
B. 10 km/h
C. 42 km/h
D. 40 km/h
4 Acceleration in a body is always produced in the direction of :
A. Velocity
B. Weight
C. Force
D. Both B and C
5 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
6 Velocity is a
A. scalar quantity
B. vector quantity
C. constant quantity
D. none of them
7 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
8 Angular momentum
A. Scalar
B. Axial vector
C. Polar vector
D. At 45° angle
9 Biomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
10 The displacement coincides with the path of the motion when a body moves is a
A. curved line
B. straight line
C. may be curved or straight
D. none of them

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