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Subjects
Science CBSE
Class 9 New
How force affects motion
Pumpa Practice Questions
6.
Definition of friction
Exercise condition:
3
m.
Answer in brief:
What is friction?
Friction is a force that acts between two
gap
contact
vacuum
distance
surfaces and opposes
rest
silence
motion
darkness
.
For example, when a bicycle moves on the road, friction between the
tyres and the road
tyres and sound waves
tyres and sunlight
tyres and the sky
helps it stop safely.
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