what is friction? Write different methods to prevent friction ?
Write advantages and disadvantages of friction?
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what is friction? Write different methods to prevent friction ?
Write advantages and disadvantages of friction?
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Answer:
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact.
Different methods are as follows :-
1) By using lubricants: friction increases as the roughness of the surface increases. ...
2)Polishing surfaces: It makes the surfaces even and hence reduces friction.
3) By using ball bearings: Rotating machines can be mounted on ball bearings. ...
4) By streamlining: streamlining reduces the area of contact and thus reduces friction.
Explanation:
Advantages of friction:
Friction enables us to walk freely.
It helps to support ladder against wall.
It becomes possible to transfer one form of energy to another.
Disadvantages of friction:
Friction produces a lot of heat in various parts of the machinery and this leads to wastage of energy as heat.
Opposes motion, hence more energy is needed to overcome friction.
Noise production in machines is irritating as well as leads to energy loss.
Hope it helps, Mark Brainlist please☺☺
Answer
Friction is a force between two surfaces that are sliding,or trying to slide, across each other. Friction always works in the direction opposite to the direction in which the object is moving, or trying to move. Friction always slows a moving object down.
Different methods to prevent friction:
Advantages of friction
Disadvantages of friction
I hope this helps you...