Question # 1

If the direction of motion of the force is perpendicular to the direction of motion of the body, then work done will be:

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Maximum

Minimum

Zero

None of the above

If the direction of motion of the force is perpendicular to the direction of motion of the body, then work done will be

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Maximum

Minimum

Zero

None of these

A solar cell is also called:

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Photo cell

Generator

Battery

None

The energy possessed by a body due to height is called:

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P.E

K.E

Both

None

SI unit of work is:

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Joule

Coulomb

Ampere

Kelvin

Formula of work is:

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F X S

F X V

F/S

S/F

The S.I unit of work is :

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J

N

Kg

m

The product of force and distance is :

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Force

Work

Torque

Nil

P.E is calculated by a formula :

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Mgh

mg

gh

Nil

The power of electric kettle is 500W and takes 2s to heat up, find heat generated?

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E = 250 w

E = 1000 w

E = 10000 J

1KJ

Kinetic and potential energy are the kinds of energy:

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Chemical

Nuclear

Light

Mechanical

If a force F makes an angle θ with the direction of motion of the force, then the formula for the work done will be:

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W = FS

W = FS cosθ

W = FS sinθ

W = FS tanθ

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9th Class Physics Chapter 6 Work and Energy English Medium KPK Boards Online Mcqs MCQs With Answers

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