Question

please ans it in one word
1. A substance that forms a thin layer between the two surfaces in contact.
2. The process of reducing friction of uneven surface.
3. Friction experienced by a body when it rolls over the surface of another.
4. A common way of reducing friction between two surfaces .
5. Frictional force exerted by fluids. ​

Answer 1

Answer:

1) Lubricants

2) galvanisation

3)Rolling friction

4) oiling

5)drag

Answer 2

Answer:

1. lubricant
2. galvanisation
3. Rolling friction
4. oiling or painting
5. Drag

Explanation:

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