Describe the factors affecting friction
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Answer:
actors Affecting Friction
Friction is an opposing force that restricts the motion of one body over the surface of another body in contact with it. It is absolutely necessary for the motion of any object over another. It is like a necessary evil which harms and helps. Its dual function can be understood by the example of walking, we are able to walk because there is friction, and we are walking at a certain low speed because of the opposing force provided by friction.
Also, Like in case of a ball freely rolling or sliding on the ground, the ball eventually comes to stop, because of the force of friction that acts between the ball and the ground during its movement. This means that if a force acts in the direction from right to left, friction acts in left to right direction and the vice versa is also true that if the force acts in left to right the friction will act in the opposite direction that is from right to left.
There are some forces which only comes into action when they are in contact with each other. It is known as the contact forces. It is offered by solids, liquids and also by gases, but it is maximum in the case of solids and least in the case of gases. The effects of friction include the gradual wearing away of things; this can be seen in examples like the uneven soles of our shoes, balding bicycle tyres and the deliberate action of rubbing sandpaper on a surface
Answer:
Factors affecting Friction
I) Roughness/smoothness of the sliding object
II) Shape/design of the object