- The opposition offered by a conductor to the flow of electric current is called its resistance while the conductor is called a resistor.
- The energy due to its position of a body is called as Potential Energy.
- When a piece of rubber is stretched, the energy stored in it is called as Elastic Energy.
- Energy obtained from a chemical reaction is called as Chemical Energy.
- Energy obtained by our body from food is Heat Energy.
- The biggest (largest) source of heat energy on Earth is Sun۔
- Energy obtained from sun is known as “Solar Energy”.
- The amount of solar energy falling vertically on atmosphere is 1 kilowatt per square meter.
- Solar energy can be used for producing electricity from two ways.
- Energy released due to the burning of fuel is “Heat Energy”.