What are non-contact forces?

Important Questions on Force and Friction

EASY

8th CBSE

IMPORTANT

OXFORD New Science In Everyday Life 8>Chapter 10 - Force and Friction>Exercises>Q A

A plastic comb attracts small pieces of paper due to

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8th CBSE

IMPORTANT

OXFORD New Science In Everyday Life 8>Chapter 10 - Force and Friction>Exercises>Q A

Frictional forces between two surfaces come into play only when the two surfaces

MEDIUM

8th CBSE

IMPORTANT

OXFORD New Science In Everyday Life 8>Chapter 10 - Force and Friction>Exercises>Q A

The disadvantage of friction is that _____.

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8th CBSE

IMPORTANT

OXFORD New Science In Everyday Life 8>Chapter 10 - Force and Friction>Exercises>Q A

Oils and grease are common.

MEDIUM

8th CBSE

IMPORTANT

OXFORD New Science In Everyday Life 8>Chapter 10 - Force and Friction>Exercises>Q A

To reduce drags, automobiles, ships and aeroplanes are given

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8th CBSE

IMPORTANT

OXFORD New Science In Everyday Life 8>Chapter 10 - Force and Friction>Exercises>Q A

A force can change the shape and size of an object.

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8th CBSE

IMPORTANT

OXFORD New Science In Everyday Life 8>Chapter 10 - Force and Friction>Exercises>Q A

Gravitational force is a contact force.

EASY

8th CBSE

IMPORTANT

OXFORD New Science In Everyday Life 8>Chapter 10 - Force and Friction>Exercises>Q A

When we lift a weight in our hands, the force required is provided by the tension of our muscles.