What is friction? answer in short
Answers
Explanation:
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friction is the force resisting the relative motion of solid surfaces, fluid layers against each other.
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Answer:-
friction is a force that opposes motion and tries to stop the movement of one surface over another.
more about friction:-
Friction always works in the opposite direction of the moving object, trying to slow it down
There are four types of friction:
- static friction
- sliding friction
- rolling friction
- fluid friction.
Static, sliding, and rolling friction occur between solid surfaces.
Fluid friction occurs in fluids, which are liquids or gases.
Advantages of friction:-
Friction helps us to walk.
It becomes possible to transfer one form of energy to another.
Objects can be piled up without slipping.
Breaks of vehicles work due to friction.
Disadvantages of friction:-
Friction produces heat in various parts of the machinery. this leads to wastage of energy as heat.
friction, as mentioned in the definition, opposes motion, hence more energy is needed to overcome friction.
Forest fires are caused due to friction between branches of trees.
it causes tear in shoes, causes the ereaser to shrink
ways to overcome friction:-
polishing the surface
applying lubricants
using ball bearings