Question

Friction can be reduced by using

Answer 1

By polishing the surface, as polishing makes the surface smooth and friction can be reduced. Using lubricants such as oil or grease can reduce the friction between the surfaces. When objects are rolled over the surface, the friction between the rolled object and surface can be reduced by using ball bearings.

Answer 2

Friction can be reduced by using lubricants or making the surface smooth and polished.

• Polishing a surface or making it smooth helps in reducing friction as it allows free movement on the surface.
• Using lubricants like grease or oil also helps to reduce friction.
• Using talcum powder reduces friction and allows restriction-free movement. For example, talcum powder is sprinkled on the carrom board to ensure the easy movement of the coins.