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Friction — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceFriction2 Marks
Question
What is meant by lubrication ? Why is it important?
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Answer

Lubrication means applying some additive to the parts of a machine to reduce the friction. Its important because it reduces the friction between the parts of the machine. But excess lubrication can generate more heat. Example- Castor Oil, Grease.

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