Question # 1

The average speed of cheetah is.

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60 kmh^-1

70 kmh^-1

75 kmh^-1

80 kmh^-1

Which of the substance is heaviest?

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Copper

Mercury

Aluminum

Lead

The value of G is _________ every where:

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Same

Varying

Changing

1.62

The energy of a body during the motion is called:

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Potential energy

Kinetic energy

Elastic P.E.

Heat energy

The single force that has the same effect as the combined effect of all the force to be added is called a

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Opposite force

Single force

Resultant force

Resultant vector

Leslie cube have faces:

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2

3

4

5

The potential energy of a body of mass 'm' placed at a height 'h' above the surface of earth is equal to

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P.E. = mg

P.E. = mgh

P.E. = 3mgh

P.E. = 2mgh

Metals are good conductors of heat due to :

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Free electrons

Big size of molecules

Small size of molecules

None of these

What kind of waste is produced by nuclear power plant?

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Carbon di oxide

Radio active

Fuels

Toxic material

The momentum of two or more than two bodies intersacting remain constant in:

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Law of inertia

Isolated system

System

None

S.I unit of pressure is Pascal which is equal to?

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10 Nm^-2

1 Nm^-2

10² Nm^-2

10³ Nm^-2

The radius R of the earth is:

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6 x 10¹⁸m

6.4 x 10⁶m

6.4 x 10⁸m

6.4 x 10¹²m

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