Question # 1

The force with which earth attracts a body towards its center is equal to its

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Mass

Weight

Charge

Radius

Melting point is also known as:

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Moiling point

Freezing point

Fusion point

None of these

The bad conductor of heat is:

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Iron

Copper

Air

Aluminum

When a body is lifted through a height h, the work donw on it appears in the form of its.

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Kinetic energy

Potential energy

Elastic energy

Geothermal energy

The slope of speed time graph is called.

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Distance

Displacement

Acceleration

Velocity

A line about which a body rotates is called;

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Axis of rotation

Rigid Body

Center of gracity

None of these

The approximate weight of 80 gram mass on the surface of Earth is

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800 N

80 N

0.8 N

8 N

Gravitational force is a:

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Electric force

Magnetic force

Reactional force

Electromotive force.

Two equal but unlike parallel forces having different lines of action produce:

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a Torque

a couple

Equilibrium

Netural equilibrium

The height of geostationary satellites with respect to Earth is

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36,300 km

40,300 km

30,300 km

42,300 km

It is useful to know the location of center of gravity of a body in problem dealing with

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Motion

Equilibrium

Charge

Velocity

Anything that rotates around a planet is called:

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Star

Sun

Moon

Satellite

A force of 20 N is acting on a body of mass 8 kg,Its acceleration will be

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2.5 ms-2

4.5 ms-2

5.5 ms-2

3.5 ms-2

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