Question # 1

The acceleration of a projectile along x axis is.

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Zero

Increase

Decrease

Equal to 'g'

An athlete runs with a speed of 12 ms-1. Determine the longest jump he can undertake.

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12 m

14.4 m

24 m

16.2 m

A force of 20 N acts along x axis, tis component is.

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0 N

10 N

20 N

30 N

when a ball is throng straight up, the acceleration at its highest point is.

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Upward

Down ward

Zero

Horizontal

In the absence of air resistance the acceleration of a body will be

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Uniform

Variable

Instantaneous

None of these

When the car moves with an increasing acceleration then its velocity time graph is always

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Constant

Variable

A straight line

A curve

Food rich in proteins is:

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potato

grapes

vegetables

bread

The action and reaction never act on

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Same body

Two bodies

many bodies

All of these

Rate of change of velocity is called

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Speed

Acceleration

Displacement

Torque

Distance covered by a freely falling body is 2 seconds will be

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9.8 m

19.6 m

44.4 m

49 m

In matter, the Atoms are in a state of never ending

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Motion

Rest

Change

State of decline

For maximum range the angle of projection must be

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30^o

45^o

60^o

90^o

Total change in momentum of an isolated system is

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Always (+) ve

Always (-) ve

Has maximum value

Zero

For a rocket , the change in momentum per second of the ejecting gases is equal.

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Acceleration of the rocket

Momentum of rocket

Velocity of rocket

Thrust acting on rocket

The velocity of a free falling body just before Hattin the ground is 9.8 ms-1, the height through which is fall be

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98 m

19.6 m

4.9 m

9.8 m

When speed of a body is doubled then its

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K.E. is doubled

P.E. is doubled

Acceleration of doubled

Momentum is doubled

A body covers a distance of 10 m in 1 sec with a constant velocity of 10 ms-1 , Acceleration produced by the body is.

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0 ms-1

2 ms-2

5 ms-2

10 ms-2

Before the launch of a rocket the mass of fuel of the rocket is approximately consists of.

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60%

50%

80%

100%

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Physics Fsc Part 1 Chapter 3 Online Test MCQs With Answers

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