Question # 1

SI unit of pressure is pascal, which is equal to:

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10⁴ Nm^-2

1 Nm^-2

10²Nm^-2

10³ Nm^-2

The example of bad conductor is:

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Wool

Copper

Gold

Iron

Density is a ratio of mass to:

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Area

Volume

Length

Mass

The eleventh general conference was held in Paris in.

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1959

1961

1660

1960

Orbital velocity v_o =

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√gR

√RG

gR

gR²

Consider a rigid body. As it rotates, its particles move in fixed

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Squares

Circles

Triangles

Rectnagles

If an object is moving with a uniform changing speed then speed time graph .

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Variable

Parallel to time axis

Straight line

The ability of a body to do work is known as

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power

energy

kinetic energy

potential energy

A body is in equilibrium when its:

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Acceleration in uniform

speed in uniform

Speed and Acceleration are uniform

Acceleration is Zero.

The S.I unit of efficiency is :

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J/s

Nm

watt

It has no unit

Forces on doubled arm spanner are called.

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Torque

Couple

Moment of force

Momentum arm

If the velocity of body decreases with time then acceleration will be.

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Positive

Negative

Variable

Uniform

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