Question

write the advantages and disadvantages of friction
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Answer 1

Explanation:

Advantages of friction:

1. Friction enables us to walk freely.

2. It helps to support ladder against wall.

3. It becomes possible to transfer one form of energy to another.

4. Objects can be piled up without slipping.

5. Breaks of vehicles work due to friction.

Disadvantages of friction:

1.It always resists the motion, so extra energy is required to overcome it.

2.It causes wear and tear of machines.

3.It decreases the life expectancy of moving parts of vehicles.

4.Since friction is very useful in some cases while harmful in some cases, friction is called a necessary.

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Answer 2

Answer:-

Advantages and Disadvantages of Friction

Advantages of Friction:

• Friction is responsible for many types of motion.

• It helps us walk on the ground

• Brakes in a car make use of friction to stop the car

• Asteroids are burnt in the atmosphere before reaching Earth due to friction

Disadvantages of Friction:

• 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.

• A lot of money goes into preventing friction and the usual wear and tear caused by it by using techniques like greasing and oiling.

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