Question # 1

Which one of the following units is not a derived unit?

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Pascal

Kilogram

Newton

Watt

Centripetal acceleration of a body is given by formula:

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a_c=v/r

a_c=mv²/r

a_c=v/r²

a_c=v2/r

Magnetic force is an example of :

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Action at a distance

Force

Torque

Nil

Friction causes _____________

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Heat

Light

Mass

Weight

Ship and boats are designed on the principal of

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Charge

Densities

Volume

Floatation

___________ specific heat of water is benefits in sustaining life.

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High

Low

Medium

None

Relation between force and momentum is:

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ΔP/F

ΔP/t

ΔPF

None

If the force of 25 N pulls a stone through a distance of 5 cm in its direction the magnitude of work will be:

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5 J

125 J

175 J

200 J

Fourth state of matter is:

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Solid

Plasma

Liquid

Gas

An interval of 200 micro second equivalent to.

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0.2 s

0.02 s

2 x 10^-4 s

2 x 10^-6 s

All ________ conduct heat easily:

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Non metals

Gases

Material

Metals

The value of g is maximum at:

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Mountains

Maximum height

Surface of earth

At 2R

P.E is calculated by a formula :

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Mgh

mg

gh

Nil

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