Question

The friction between moving parts of machinery can be reduced by applying a _________.

Answer 1

Reduction of a frictional force:

1. Frictional force is a type of contact force.
2. It starts to act whenever two surfaces are in contact with each other or move over one another.
3. The friction between moving parts of machinery can be reduced by applying a lubricant such as oil, grease, and ball bearing.
4. Lubricant is a substance that is introduced between two surfaces to decrease friction.
5. When a lubricant is introduced between the two surfaces it forms a thin layer between the moving parts.

The friction between moving parts of machinery can be reduced by applying a lubricant.