Question

1. List three ways of reducing friction.​

Answer 1

Answer:

Ways to reduce friction:

1. Providing ball bearings or wheels between the moving parts of machine or vehicles reduce friction and allow smooth movement as rolling friction is less than sliding friction.

2. Oiling or lubricating (with graphite or grease) the moving parts of a machine reduces friction. Find powder like talcum powder also work as a lubricant to reduce friction.

3. Polishing the rough surface reduces friction offered by it.

Answer 2

Answer:

reduce the roughness of the land