Increasing and Decreasing Friction
Increasing and Decreasing Friction: Overview
This topic includes activities that illustrate how friction can be increased or reduced. Gymnasts put some substance in their hands to increase friction for better grip. It also mentions that powder can be added between two bodies to minimize friction.
Important Questions on Increasing and Decreasing Friction
The substances which reduce friction are called _____.
The substances which increases friction are called lubricants.
The substances which reduce friction are called lubricants.
It will be _____ (easier/ difficult) to walk on soapy water poured on the marble floor.
Friction can be reduced to zero.
Applying lubricants to surfaces of machines reduce the friction between them.
Lubricant oils are used as fuel in vehicles and kitchen.
_____ (Talcum powder/Sand) is sprinkled on the carrom board to reduce friction.
Oil applied to a surface to reduce friction better serves as a :
Lubricants are used to increase friction.
Why do we spray powder on carrom board?
