Question # 1

Metals are good conductor of heat due to:

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Free electrons

Reamain same

Small size of their molecules

Rapid vibration of their atoms

A change in position from point A to B is called.

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Distance

Velocity

Speed

Displacements

While rounding the numbers if last digit is 5, then.

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It is simply dropped

The digit on its left is increased by 1

It is rounded to get nerarest even number

It remain same.

In solids, Heat is transferred by:

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Radiation

Conduction

Convection

Absorption

When a substance is changed from its solid state to liquid state by adding heat, the process is called

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Melting

Fusion

Freezing

A and B both

If the direction of motion of the force is perpendicular to the direction of motion of the body, then work done will be

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Maximum

Minimum

Zero

None of these

The formula of Density is:

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m/v

v/m

m x v

None of these

The unit of stress is:

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Newton

Pascal

Nm^-2

m³

Dogs sweat through:

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Tongue

Legs

Skin

Glands

In Fahrenheit scale, upper refrence point is:

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32 ^oF

212 ^oF

180 ^oF

100 ^oF

Work is zero when "F" and "S" will be:

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Parallel

Perpendicular

Anti parallel

Tangent

Running water possess energy:

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Kinetic

Potential

Elastic Potential energy

Gravitational potential energy

A sugar bag of 1 kg has a momentum 25 kg m/s than its velocity is :

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v = 20 m/s

v = 25 kg

V = 25 m/s

v = 25 kg/ms-1

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