Question

present in B. Fill in the blanks.
1. Friction occurs due to the interlocking of depressions and__________present in a body
2. Friction arises due to the formation of____________ welds
3. Friction depends upon___________ of surfaces.
4. Friction causes a lot of____________ of energy.
5. We use ball bearings between different parts of a machine to_________ friction​

Answer 1

Answer:

1. elevation and ridges
2. heat
3. smooth ness and roughness
4. wastage or loss of energy
5. to reduce the friction between surface

Explanation:

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