Question

Write two advantages and disadvantages for frictions
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Answer 1

Advantages of friction

friction between our feet and the ground makes it possible for us to work it is very hard to walk on ice or on a smooth polished floor due to less friction .

friction between the tyres of vehicles and the road makes them roll forward .thus, friction makes movement of vehicles possible.

Disadvantages of friction

friction makes it hard to slide heavy objects.

friction generates heat. heat produced due to friction causes damage to machine parts such as car brakes

Thank you

Answer 2

Answer:

Friction produces unnecessary heat leading to the wastage of energy. The force of friction acts in the opposite direction of motion, so friction slows down the motion of moving objects. ... A lot of money goes into preventing friction and the usual wear and tear caused by it by using techniques like greasing and oiling.

Explanation: