CHAPTER 5 ENERGY – SCIENCE STD 4 NOTES
Demonstrate a basic understanding of types of energy and their uses
Describe types of energy
Recognizing various types of energy and their uses
Concept of energy
What is energy?
Energy is the ability of doing work.
The standard unit of energy is Joule (J)
Types of energy
There are two types of energy
(a)Potential energy
(b)Kinetic energy
(a) Potential energy
What is potential energy?
Potential energy is the energy possessed by a body due to its position (height).
Example of potential energy
❖ A bucket contain water
(b) Kinetic energy
What is kinetic energy?
Kinetic energy is the energy possessed by a body due to its motion.
Example of kinetic energy
❖ Moving water in a river
Activity showing potential and kinetic energy
CHAPTER 5 ENERGY – SCIENCE STD 4 NOTES
CLICK HERE TO GET NOTES