Question

write advantages and disadvantages of friction​

Answer 1

Answer:

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 evil.

Explanation:

Answer 2

QUESTION :-

Write advantages and disadvantages of friction?

ANSWER :-

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

Disadvantages of friction-

• Sometimes friction produces heat in the machinery or its parts.

• Friction makes wear and tear of the machinery

• Extra energy is required to move the heavy body or vehicle or automobile