Question # 1

The product of force and displacement is called;

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Work

Efficiency

Power

Energy

The density of a substance can be found with the help of

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Pascal's law

Hooke's law

Archimedes principle

Principle of floatation

The height of geostationary satellites with respect to Earth is

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36,300 km

40,300 km

30,300 km

42,300 km

The value of 'g' on the surface of Mars:

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3.73 ms^-2

1.62 ms^-2

Zero

Constant

.............. is example of vector.

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Length

Force

Mass

Time

S.I unit of pressure is :

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Nm^-2

Newton

Joule

Watt

A physical quantity possesses characteristics.

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2

3

4

5

How many times Mercury is denser than water?

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12.5

13.6

76

76.5

A string is stretched by two equal and opposite forces 10 N each. The tension in the string is

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Zero

5N

10N

20N

The SI unit of thermal conductivity is

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Wm K-1

Wm-1K

Wm-1K -1

WmK

Unit of thermal conductivity is .

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Wmk

W m^-1 K^-1

Wm

None of these

In Einstein's mass-energy equation, c is the

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Speed of sound

Speed of light

Speed of electron

Speed of Earth

The force acting on unit area at surface of a body is called:

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Strain

Elasticity

Force

Stress

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Physics 9th Class English Medium Online Test MCQs With Answers

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