Give examples of how is friction responsible for energy wastages? Give suggestions to
reduce energy wastages by friction.
SCERT Class 8 Telangana, Physical Science Chapter 2 Friction
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wherever there is a moving part there is friction. To overcome this friction useful energy of the machine is wasted in the form of heat. Thus efficiency is reduced. The wear and tear of the machine is increased.
to reduce friction
1) lubrication - separating two surfaces with a layer of oil is called lubrication
2)- smoothing the surface
3)-ball bearings
4)-antifriction metals - metals having low value of coefficients of friction is used
to reduce friction
1) lubrication - separating two surfaces with a layer of oil is called lubrication
2)- smoothing the surface
3)-ball bearings
4)-antifriction metals - metals having low value of coefficients of friction is used
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