Question # 1

Decrease in atmospheric pressure predicts:

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Rainy condition

Intense condition

Windy Condition

Pleasant condition

Newton per meter square is a unit of:

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Pressure

Stress

Both A and B

Force

Force per unit Area is :

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Pressure

Density

Efficiency

Nil

Hydraulic press is a machine which works on

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Hook's law

Archimedes principle

Pascal's law

Boyle's law

Breaking system in vehicles depends upon:

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Pascal's law

Hook's law

Archimedes law

Principle of floatation

Hydraulic press in works on:

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Pascal's law

Hook's law

Archimedes law

Principle of floatation

The unit of density is:

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kg^-1 m^-3

kg m^-1

kgm^-3

kgm^-2

Where there is no air the atmospheric pressure is:

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Zero

101300 Pa

7 nm Hg

1000 Nm^-2

1 Pa is equal to

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NM

NM-1

JS

NM-2

Which of the substance is the lightest one?

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Copper

Mercury

Aluminim

Lead

As we go up the density of air in the atmosphere:

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Decreases

Increases

Remain constnat

None of these

Plasma is in ___________ form.

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Moleculer

Kinetic

Static

Ionized

Ships and submarines float partially or completely according to:

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Newton's law

Pascal's law

Principle of floatation

None

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

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