Question

what is friction? give two advantages and two disadvantage of friction​

Answer 1

Answer:

Friction is defined as. The resistance offered by the surfaces that are in contact with each other when they move over each other. Friction works in the opposite direction in which the body is moving making the body slow down

Advantages of friction:

1. Friction enables us to walk freely.

2. It helps to support ladder against wall.

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.

Answer 2

Explanation:

Friction is the resistance to motion of one object moving relative to another. There are several types of friction. Some advantages and disadvantages of Friction are given below.

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:

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.