Friction
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185
What is meant by lubrication? Why do we lubricate the moving parts of our vehicles? Name s...
By Priya123, 3 years ago
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242
Why are heat resistant tiles laid along the surface of spaceships?
By Priya123, 3 years ago
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205
Give five examples to show that friction is increased deliberately.
By Priya123, 3 years ago
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150
Friction opposes the ………….. between the surfaces in contact with each other.
By Priya123, 3 years ago
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318
Gaurav went to the market on his bicycle. He found that he had to apply a lot of force whi...
By Priya123, 3 years ago
replies 1
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205
(i) How do trees help reduce friction? (ii) Why do meteors bum on entering the atmosphere?
By Priya123, 3 years ago
replies 1
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181
A labourer has to push a heavy trunk. What should be done to reduce his effort in pushing ...
By Priya123, 3 years ago
replies 1
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286
Give three factors on which the frictional force in fluids depends.
By Priya123, 3 years ago
replies 1
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