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

Force is a:

Question # 2

The motion of a projectile is

Question # 3

The linear momentum of the body is defined as

Question # 4

Bodies failing freely under gravity provide good example of motion under

Question # 5

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

Question # 6

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

Question # 7

If the acceleration of a body is negative, then slope of the velocity-time graph will be:

Question # 8

Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?

Question # 9

If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)

Question # 10

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

Question # 11

Swimming is based on the principle of

Question # 12

Distance covered by a freely falling body in 2 sec will be

Question # 13

Acceleration produced in a body by a force varies

Question # 14

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

Question # 15

Slope of velocity-time graph represents:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Inertia mass and gravitational mass are
A. opposite
B. identical
C. identical when there is no friction
D. all of them
2 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
3 A ball is dropped from a height of 4.2 meters. To what height will take it rise if there is no loss of KE after rebounding?
A. 4.2 m
B. 8.4 m
C. 12.6 m
D. none of these
4 The projectile attains maximum horizontal range when it is projected at an angle of
A. 30°
B. 45°
C. 60°
D. 75°
5 Swimming is based on the principle of
A. Newton's 1st law
B. Newton's 2nd law
C. Newton's 3rd law
D. All
6 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
7 For maximum linear distance of travel, a projectile must be fired at an angle of
A. 0°
B. 45°
C. 90°
D. 60°
8 When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.
A. Becomes half
B. Becomes zero
C. Ramains same
D. Becomes double
9 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:
A. 2 Kg
B. 3 Kg
C. 4 Kg
D. 8 Kg
10 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
A. m (1 - a/g)
B. m (1 + a/g)
C. m
D. Zero

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