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 man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?

Question # 2

The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is

Question # 3

Newton's first law is also called:

Question # 4

Graphs which are used to illustrate the variation of velocity of an object with time are called

Question # 5

For a moving body, at any instant of time

Question # 6

The shortest distance between two points directed from its initial point to final point is called:

Question # 7

In above figures, tell which set of graphs shows that a body is moving with uniform velocity:

Question # 8

A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:

Question # 9

A body moving with uniform velocity has

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

Bodies which falls freely under gravity provides good example of motion under:

Question # 12

Bodies failing freely under gravity provide good example of motion under

Question # 13

The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:

Question # 14

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

Question # 15

The second law gives the relationship between

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 When brakes are applied to a fast moving car, the passenger will be thrown:
A. Forward
B. Backward
C. Downward
D. none of these
2 The magnitude of the displacement is a line from initial position to final position which is
A. straight
B. curved
C. either be curved or straight
D. none of them
3 For maximum linear distance of travel, a projectile must be fired at an angle of
A. 0°
B. 45°
C. 90°
D. 60°
4 The SI units of momentum is
A. kg m s-2
B. kg ms
C. kg m s2
D. N-s
5 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
6 A dirty carpet is to be cleaned by heating. This is in according with______law of motion.
A. First
B. Second
C. Third
D. None of these
7 The consumption source if energy is:
A. Energy from blomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
8 If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have
A. different values
B. same values
C. zero valves
D. constant valves
9 Newton's laws are adequate for speeds that are
A. low compared with the speed of light
B. equal to the speed of light
C. greater than the speed of light
D. all of them
10 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

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