Question # 1

Two bodies of masses m₁ and m₁ attached to the ends of an inextensible string passing over a frictionless pulley such that both move vertically. The acceleration of the bodies is:

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m1 x m₂ / m₁ + m₂ g

m₁ - m₂ / m₁ + m₂ g

m₁ + m₂ / m₁ - m₃ g

None of these

Wood, cork, cotton, wool, rubber are the eamples of:

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Conductor

Thermal conductor

Insulator

both a & b

The gravitational force has the ________ relation with the distance between two masses:

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Direct

Inverse

Constant

None

The velocity of bodies falling down

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Dwscreses

Increases

Zero

Constant

Moon is our satellite:

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Artificial

Permanent

Natural

Communication

Kgms^-2 is equal to:

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Joule

Mole

Newton

Watt

Melting point is also known as:

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Moiling point

Freezing point

Fusion point

None of these

The mathematical formula of thermal conductivity is

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k =Q/t x L/A (T1 - T2)

k =Q/t x L/A (T1 + T2)

k =t/Q x L/A (T1 - T2)

k =2Q/t x L/A (T1 + T2)

Breaking system in vehicles depends upon:

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Pascal's law

Hook's law

Archimedes law

Principle of floatation

The mass of Earth is

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6 x 1018 kg

6 x 1020 kg

6 x 1022 kg

6 x 1024 kg

Transfer of heat between two bodies which are at same temperature is:

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Maximum

Minimium

Positive

Zero

Relation between force and momentum is:

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ΔP/F

ΔP/t

ΔPF

None

Fourth state of matter is:

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Solid

Plasma

Liquid

Gas

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