Question

What is friction ?
Effect of friction?
How many types of friction?
Advantages and disadvantages of friction?​

Answer 1

Answer:

friction is a force which opposes the motion of an object

effects of friction

It produces heat

Ir causes loss in power

It also produces noise during any kind of operation

types of friction

☆Rolling friction

☆ Sliding friction

☆ Static friction

Answer 2

Answer:

What is friction?

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.

Effects of Friction?

It produces heat, that helps in heating parts of any object or to warm ourselves. It also causes loss in power. It produces noise during any kind of operation. It's because of friction that we're able to walk, run, play, etc.

How many types of friction?

There are two main types of friction, static friction and kinetic friction. Static friction operates between two surfaces that aren't moving relative to each other, while kinetic friction acts between objects in motion.

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:

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