write four advantage of friction and four disadvantages of friction
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Answer:
Some Advantages of friction are:-
- Friction enables us to walk.
- Friction enables us to write.
- Friction enables us to fix nails.
- Friction enables a vehicle to move.
•Friction enables us to light a matchstick.
Some Disadvantages of friction are:-
- Friction produces heat causing damage to machines.
- Friction reduces the efficiency of machines.
- Friction wears out the rubbing machine parts.
•Friction wears out the soles of shoes.
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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. Forest fires are caused due to the friction between tree branches.
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