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

The dimension of linear inertia is:

Question # 2

The three equation of motions are useful only for

Question # 3

Bodies failing freely under gravity provide good example of motion under

Question # 4

Newton's laws are adequate for speeds that are

Question # 5

Biomass includes:

Question # 6

If m is the mass of the gases ejected per second with velocity v relative to the rocket of mass M, then the acceleration of rocket is

Question # 7

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

Question # 8

Root out the conventional source of energy:

Question # 9

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

Question # 10

The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90° with the force of the smaller magnitude, then their magnitudes are

Question # 11

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 # 12

A body is thrown from a height h with speed u, it hits the ground with speed V

Question # 13

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

Question # 14

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

Question # 15

When two protons are brought closer potential energy of both of them:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 When a body is moving on a surface, the force of friction is called
A. Static friction
B. Dynamic friction
C. Limiting friction
D. Rolling friction
2 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
3 When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is
A. zero
B. negative
C. positive
D. non-existing
4 The motion of a projectile is
A. one dimension
B. two dimension
C. three dimension
D. all of them
5 If the instantaneous velocity of a body does not change. the body is said to be moving with
A. average velocity
B. uniform velocity
C. instantaneous velocity
D. variable velocity
6 Unit of impulse in
A. Newton
B. Kg m
C. Kg m/s
D. Joule
7 A body is thrown from a height h with speed u, it hits the ground with speed V
A. The value of V is maximum if the body is thrown vertically downward
B. The value of V is maximum if the body is thrown vertically upwards
C. The value of V is minimum if the body is thrown horizontally
D. The value of V does not depend on the direction of which it is thrown
8 During the upward motion of the projectile, the vertical component of velocity:
A. Decreases
B. Increases
C. Remains constant
D. None of these
9 The shortest distance between two points directed from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
10 A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is
A. Moving forward and gaining speed
B. Moving forward and losing speed
C. Moving forward with uniform speed
D. Moving backward with uniform speed

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