Force and Work

A force that tries to stop a moving object is known as?

• Gravitational force

• Force of friction

• Mechanical force

• Electrical force

Ability to do work is known as?

• Energy

• Work

• Force

• Machine

The energy used to turn the blades of a windmill is called_____________

• solar energy

• water energy

• wind energy

• muscular energy

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Identify whether work is done or not in the picture

• Yes

• No

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A push or pull that acts on an object is called

• Work

• Force

• Energy

• Momentum

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Identify the simple machine

• Wheel and axle

• Lever

• Pulley

• Wedge

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a man is pushing a table. Now the man is applying ____ on the table.

• work

• force

• energy

• muscles

When we throw a ball into air, it falls back. The force responsible for this is

• muscular force.

• gravitational force.

• mechanical force

• none of these

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A football kicked by a boy rolls on the ground to some distance and stops. The force which stops the ball is

• muscular force

• gravitational force.

• mechanical force.

• frictional force.

Which of the following activities would need energy the most?

• Riding a bicycle up a hill

• Walking

• Riding a bicycle on a level ground

• Doing homework

Tags

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