In a car, friction is essential in some parts but needs to be reduced in some parts. Give two examples of where friction is a) Essential and b) Needs to be reduced in a car.

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Solution

(a) Friction essential:
(i) In breaks it is necessary to stop car faster
(ii) On wheels and road, so car can move and it doesn't slips.
(b) Friction need to reduce
(i) In engine piston for fast movement
(ii) Car stair wheels for easy movement

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Similar questions

Q. Choose the correct statement from the following:

1. Grease is used to reduce friction in the bicycle chain.
2. Ball bearings are used to reduce friction in a fan.
3. Oil is used to increase friction in car parts.
4. Talcum powder is used to reduce friction on a carrom board.

Q. Choose the correct statements from the following:
A) Grease is used to reduce friction in the bicycle chain.
B) Ball bearings are used to reduce friction in a fan.
C) Oil can be used to increase friction in a car engine.
D) Talc can be used to reduce friction in a carrom board.

Of the following statements choose the correct combination that helps reduce friction:
A) Grease is used to reduce friction in bicycle chain
B) Ball bearings are used to reduced friction in a fan
C) Oil can be used to increase friction in a car engine
D) Talc can be used to reduce friction when an object is sliding on a surface.

Q. List some ways in which friction between two surfaces can be reduced.

Q. The friction between the moving parts of a machine can be reduced by using between its parts.

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In a car, friction is essential in some parts but needs to be reduced in some parts. Give two examples of where friction is a) Essential and b) Needs to be reduced in a car.

(a) Friction essential: (i) In breaks it is necessary to stop car faster (ii) On wheels and road, so car can move and it doesn't slips.(b) Friction need to reduce (i) In engine piston for fast movement (ii) Car stair wheels for easy movement

(a) Friction essential:
(i) In breaks it is necessary to stop car faster
(ii) On wheels and road, so car can move and it doesn't slips.
(b) Friction need to reduce
(i) In engine piston for fast movement
(ii) Car stair wheels for easy movement