ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 3 Motion and Force

Try The 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

By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second ( g=10m/s2)

Question # 2

A rocket carries its own fuel in the form of

Question # 3

Work done along a closed path in a gravitational force is:

Question # 4

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

Question # 5

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

Question # 6

If d is the displacement of the body in time t, then its average velocity will be

Question # 7

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

Question # 8

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 # 9

When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is

Question # 10

Dimensions of velocity are

Question # 11

The dimension of linear inertia is:

Question # 12

When a shell explodes in mid-air, its fragments fly off in

Question # 13

When a horse pulls a cart, the force that makes the horse run forward is the force exerted by

Question # 14

Unit of impulse in

Question # 15

A ball is dropped from a height of 4.2 meters. To what height it will rise if there is no loss of KE after rebounding?

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Suppose the water flows out from a pipe at 3kg s-1and its velocity changes from 5m s-1to zero on striking the wall, then the force exerted by water on wall will be
A. 5 N
B. 10 N
C. 15 N
D. 20 N
2 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
3 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
4 A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be
A. 7.71 m s-2
B. 0.5m s-2
C. 0.15m s-2
D. 0.092m s-2
5 The distance covered by a body in unit time is called.
A. Displacement
B. speed
C. Velocity
D. Both B and C
6 If the objects of different masses move with the same velocity, then it is more difficult to stop the
A. lighter of the two
B. massive of the two
C. any one of them
D. both of them
7 A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is
A. 0.15 x 10-3Ns
B. 0.98 x 10-3Ns
C. 1.5 x 10-3Ns
D. 2.5 x 10-3Ns
8 A body moving with uniform velocity has
A. positive acceleration
B. negative acceleration
C. infinite acceleration
D. zero acceleration
9 When the total displacement is divided by total time taken, we get:
A. Velocity
B. Average speed
C. Average velocity
D. None of these
10 Acceleration of a body at any particular instant during its motion is known as
A. average acceleration
B. uniform acceleration
C. instantaneous acceleration
D. all of them

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