Question

All of the following are advantages of friction except


friction helps in shopping cars and bicycles
friction enables us to walk
friction enables us to control the car speed
friction damage the internal moving parts of machine

Answer 1

Answer:

Advantages and Disadvantages of Friction

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

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

It helps in the generation of heat when we rub our hands.

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.

Answer 2

$\huge\red{Hey Mate}$

First of all even a wrong letter can change the meaning of whole sentence !

So look at your first sentence ...

It should be

Friction helps in stopping cars and bicycles.

_____________________________________________

_____________________________________________

Well your answer is :

Friction damage the internal moving parts of the machine .

Reason : Wear and tear of machine parts is a disadvantage not an advantage .

__________________________________________________________________________________________

Hope this helped ...

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