Question # 1

Mathematically density is defined as

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mass/volume

force/area

volume/mass

mass/area

A temperature rise in the environment disturbs life called:

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Air pollution

Land pollution

Noice pollution

Thermal pollution

A simple way to know how much a body is hot or cold is

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Our sense of touch

Termometer

Thermostat

Setback state

The weight of body is 147 N, Its mass will be ________ when g = 10 ms^-2

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1.47 kg

14.7 kg

47 kg

1.51 kg

If we increase the length of spanner the torque produced will be

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Increased

Decreased

Constant

Zero

Water is _________ conductor:

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Best

Bad

Good

Poor

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

Which of the following is produced in refrigerators by evaporation of a liquefied gas?

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Heating

Cooling

Freezing

Melting

According to Archimedes, up thrust is equal to :

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Weight of displaced liquid

Volume of displaced liquid

Mass of displaced liquid

None of these

Which of the substances is the lightest one?

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Copper

Mercury

Aluminium

Lead

The work done will be zero when the angle between the force and the distance is:

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45^o

90^o

60^o

180^o

Tan 𝜽 is equal to:

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Perpendicular/Hypotenuse

Base / Perpendicular

Base/Hyp

Perpendicular/Base

Moon is nearly km away from the Earth:

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3,80,000 km

3800 km

3,80 km

38 km

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