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

Question # 1

The unit of density is:

Choose an answer

kg^-1 m^-3

kg m^-1

kgm^-3

kgm^-2

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Question # 2

1 meter cube is equal to:

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1 liters

10 liters

1000liters

100liters

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Question # 3

In large building central heating system worms on the principle of

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conduction

convection

radiation

waves

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Question # 4

At sea level, the atmospheric pressure is about.

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101320 Pa

101300 Pa

10110 Pa

10112 Pa

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Question # 5

Standards, of physical quantities were established in .

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1910

1020

1950

1960

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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

According to Archimedes principle the density of a substance is determined by using formula

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D = w1/w2 + w1 x p

D = w1w2/w2- w1 x p

D = w1/w2 - w1 x p

D = w1w2/w2- w1 x p

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Question # 8

1 hp is equal to :

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747 W

746 W

748 W

1000 W

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Question # 9

Anticlockwise torque is taken:

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Negative

Neutral

Positive

Nil

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Question # 10

Heat radiation obey the laws of:

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Absorption

Reflection

Both A and B

None

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Question # 11

Forces on doubled arm spanner are called.

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Torque

Couple

Moment of force

Momentum arm

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Question # 12

The value of g on moon's surface is 1.6 ms^-2. what will be the weight of a 100 kg body on the surface of the moon?

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100 N

160 N

1000 N

1600 N

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Question # 13

A crate is moved by pulling the rope attached to it. it moves 10 m on straight horizontal read by a force of 100 N. How much work will be done when the rope is making an angle of 30° with the road?

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5 Joules

86 Joules

707 Joules

866 Joules

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