Question

1. List the factors on which friction depends.
2. Give two practical examples from your daily life in which friction plays a significant role.​

Answer 1

1. The friction force depends on two factors: a) The materials that are in contact. The two materials and the nature of their surfaces. ... b) The force pushing the two surfaces together.
2. Skating – A thin film of water under the blade is necessary to make the skate slide. The heat generated by the skate blade rubbing against the surface of ice causes some of the ice to melt right below the blade where the skater glides over the ice. This water acts as a lubricant reducing friction.

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Answer 2

Answer:

1) friction depends upon the following factors

a) surface on which the object is moved or the nature of the surface that is smooth , rough or normal

b) the weight of the object

2) rubbing both hands together to create heat, skis sliding against snow

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