Definitions [4]
Define rolling friction
The minimum force required to roll a body on a surface is called the force of rolling friction.
Define sliding friction
The minimum force required to keep the body moving over a surface such that it moves equal distances in equal intervals of time is called the force of sliding friction.
Answer the following in short.
Define force. Write its SI unit.
A push or pull acting upon an object as a result of its interaction with another object is called force. Its SI unit is the newton (N).
Define static friction
The maximum force exerted by a surface on a body so long as it remains stationary is called the force of static friction.
Concepts [8]
- Lightning and Lightning Safety
- Force of Friction
- Types of Charges and Their Interaction
- Transfer of Charges
- Electroscope
- Lightning and Lightning Safety
- Earthquake
- Protection Against Earthquakes
