Question # 1

Unit of impulse is equivalent to that of.

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Force

Momentum

Acceleration

Velocity

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

The equations of motion hold good for

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Variable acceleration

Uniform acceleration

Centripetal acceleration

All of these

In the absence of external force, the change in momentum is.

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Zero

Constant

Decreasing

Increasing

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

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0 N

10 N

20 N

30 N

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

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Motion

Rest

Change

State of decline

A mass of 1 kg is freely falling. The force of gravity is.

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1 N

9.8 N

0.5 N

Zero

A collision in which K.E. of the system is not conserved is

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Elastic collision

Inelastic collision

3rd low of motion

None of these

Change of momentum is equal to

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Force

Tension

Impulse

Pressure

Newton's laws of motion were published in

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1587

1687

1787

1887

Unit of acceleration is

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ms-1

ms

ms-2

m2s

Kg ms-1 can also be written as

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Nm

Ns

Ns-1

Js

When velocity time graph is a straight line parallel to time axis then

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Velocity is zero

Acceleration is constant

Acceleration is zero

Velocity is variable

The horizontal component of velocity of projectile

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Increases

Decreases

Remain same

Decreases and then increases

A frame of reference stationed at the earth is an

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Inertial frame

None internal frame

Accelerated frame

Laboratory frame

The shortest distance between two points is called

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Distance

Amplitude

Displacement

Is a number

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

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Uniform

Variable

Instantaneous

None of these

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11th Class Part 1 Physics Chapter 3 Test Online MCQs With Answers

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