Question # 1

The machine which use unequal masses to find the value of "g" is ________

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Free fall apparatus

Atwood machine

Pulley

None

The energy stored in coal is

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Heat energy

Kinetic energy

Chemical energy

Nuclear energy

Solar energy is a type of.

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Renewable

Non-renewable

Natural

None

Metals are good conductor of heat dut to the:

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Free electron

Big size of their molecule

Small size of their molecules

Rapid vibrations of their atoms

The temperature at which a solid start melting is:

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Freezing point

Melting point

Fusion point

Both B and C

Heat can be transmitted form one object to the other by

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convection

radiation

conduction

all of these

2nd law of motion is stated as:

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F=m/a

F=ma

F=a/m

F=ma²

S.I unit of weight is:

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kg

m

N

K

Fourth state of matter is:

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Solid

Plasma

Liquid

Gas

The work is negative if the angle between force and displacement is:

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0°

45°

90°

180°

Radiation are emited by:

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Cold body

Hot body

All bodies

None

Decrease in atmospheric pressure predicts:

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Rainy condition

Intense condition

Windy Condition

Pleasant condition

1000 liters is equal to:

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100 m³

1 m³

1 cm³

1 mm³

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