Question # 1

___________ varies with height.

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Weight

Pressure

Mass

Energy

When the stress crosses the elastic limit, then the body will :

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Break

Permanently deformed

Plasticity

None

S.I unit of pressure is :

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Nm^-2

Newton

Joule

Watt

Force per unit Area is :

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Pressure

Density

Efficiency

Nil

Breaking system in vehicles depends upon:

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Pascal's law

Hook's law

Archimedes law

Principle of floatation

A gradual large increase in atmospheric pressure shows:

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Pleasant condition

Rainy condition

Intense condition

Winday condition

Which of the substances is the lightest one?

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Copper

Mercury

Aluminium

Lead

Barometer was first set up by:

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Robert

Torricelli

Al Razi

Nil

Most of the matter that fills the universe is in state:

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Solid

Plasma

Liquid

Gas

Which of the solid does not possess the fixed shape and volume?

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Stone

Metal spoon

Pencil

Amorphous solid

Plasma exist in _______________

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Earth

Satellite

Moon

Sun

At sea level height if mercury is:

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1000 cm

10 cm

1m

76 cm

As we go up the value of atmospheric pressure is

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Decreased

Increased

Remain constnat

None of these

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Physics 9th Class English Medium Unit 7 Online Test MCQs With Answers

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