Energy can be defined as the capacity to do work.
Types of Energy
Mechanical Energy: - By definition mechanical energy is the sum of Kinetic energy(K.E) and Potential energy(P.E).
Mechanical energy = Kinetic Energy + Potential Energy
Kinetic Energy: - Kinetic energy is the energy due to a body’s motion.
K.E = 1/2 mass × velocity2
Potential Energy: - Potential Energy is energy due to a body’s position or condition.
P.E = mass × gravity × height
Law of Conservation of mechanical energy
In a system where only forces associated with potential energy are acting (gravitational/ elastic), the sum of the Kinetic and Potential energies is constant.
K.E + P.E = Constant
- For a body that is rising:
Loss in K.E = Gain in P.E
2. For a body falling towards the earth:
Loss in P.E = Gain in K.E
3 Response to What is energy & types of energy
I really enjoyed reading this post, Keep up the good work & when you publish more articles or where can I read more on the subject..Thanks and keep up the good work.
This post has brought me back to my years in Junior School when our Science teacher taught us about energy.
nice blog about energy. very easy explanation. thanks to author.
Mechanical Energy
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