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

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

Question # 2

Dimensions of velocity are

Question # 3

If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have

Question # 4

When the total displacement is divided by total time taken, we get:

Question # 5

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

Question # 6

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

Question # 7

If the objects of different masses move with the same velocity, then it is more difficult to stop the

Question # 8

A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is

Question # 9

Distance covered by a freely failing body n the first second of its motion will be:

Question # 10

Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?

Question # 11

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 # 12

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

Question # 13

The motion in a plane is the motion in

Question # 14

A the top of the trajectory of a projectile, the directions of its velocity and acceleration are

Question # 15

If the values of instantaneous and average velocities are equal, the body is said to be moving with

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A body of weight 1 N has a kinetic energy of 1 joule when its speed is:
A. 1.46 m sec-1
B. 2.44 m sec-1
C. 3.42 m sec-1
D. 4.43 m sec-1
2 The motion in a plane is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension
3 A cold soft drink is kept on the balance. When the cap is opened, then the weight
A. Increases
B. Decreases
C. First increases, then decreases
D. Remains same
4 Change in momentum is one second is called:
A. Impulse
B. Force
C. Energy
D. Work
5 Inertia mass and gravitational mass are
A. opposite
B. identical
C. identical when there is no friction
D. all of them
6 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
7 The three equation of motions are useful only for
A. linear motion with increasing acceleration
B. line motion with uniform acceleration
C. linear motion with zero acceleration
D. linear motion with varying acceleration
8 A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when
A. Elevator is stationary
B. Elevator cable breaks and it falls freely towards earth
C. Elevator accelerates downwards
D. Elevator accelerates upward
9 A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?
A. 150 m
B. 250 m
C. 350 m
D. 400 m
10 A body of mass 5 kg is acted upon by a total change n momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS

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