class-7 lesson-2 force and motion

Which force is involved in kicking a ball?

• frictional force

• gravity

• pushing force

• centrifugal force

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m/s is the unit of .......

• speed

• velocity

• acceleration

• both (i) and (ii)

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Friction is ......

• advantageous

• disadvantageous

• both advantageous and disadvantageous

• neither advantageous nor disadvantageous

The shortest path between two points is .....

• distance

• displacement

• length

• breadth

Pieces of paper are attracted towards a comb rubbed in hair because of:

• gravitation

• electrostatic force

• magnetic force

• centripetal force

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The force which pulls or tends to pull a body is called ......

• force

• Pulling force

• pushing force

• None

The earth revolves around the sun due to ........... force

• gravitational

• frictional

• pulling

• pushing

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Screws cannot be driven into wood if there were no ......... force.

• Gravitational

• frictional

• electrostatic

• centripetal

How much is the velocity of a body when it travels 600m in 5 minutes?

• 120m/s

• 2m/s

• 5m/s

• 100m/s

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The outward force experienced by a body to remain in a circular path is called ............ force.

• centripetal

• centrifugal

• electrostatic

• none