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9th Class Physics English Medium KPK Boards Online Mcqs MCQs With Answers

Question # 1

kgm²s^-2 = _________

Choose an answer

Newton

Joule

Watt

Coulomb

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Question # 2

Highly conducting state of matter is:

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Solid

Liquid

Gas

Plasma

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Question # 3

__________ expands on heating?

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Matter

Plasma

Gas

Solid

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Question # 4

The temperature at which a solid start melting is:

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Freezing point

Melting point

Fusion point

Both B and C

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Question # 5

Length of a rod is L∘ on temperature T∘. After heating upto temperature T, its length L becomes

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L = L∘ (1 + αΔT)

L = L∘ (1 + ΔT)

L = L∘ (1 - αΔT)

L = L∘ (1 -ΔT)

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Question # 6

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

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Positive

Negative

Variable

Uniform

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Question # 7

The quantities that describe completely by magnitude and direction are.

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Scalar

Vector

Base

Derived

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Question # 8

The value of gravitational acceleration when a body is moving in downward direction is.

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10 ms^-1

10 ms^-2

10 m

-10 ms

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Question # 9

Which one is more elastic ?

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Rubber

Steel

Copper

All has equal values

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Question # 10

If heat Q flows in time 't' through some metal then rate of flow of heat is defined as

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Flow of heat = 2Qt

Flow of heat = Q/t

Flow of heat = t/Q

Flow of heat = Qt

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Question # 11

_____________ is an other unit of power.

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W/J

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Question # 12

When ice is cooled below 0 ^oC it:

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Expand

Contracts

Boils

None of these

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Question # 13

The velocity of geostationary satellites with respect to Earth is

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2Vo

Zero

1/2 Vo

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