Question

What are the two main types of energy?

Answer 1

1. Energy can be defined as the ability to do work.
2. The two main types of energy are kinetic energy and potential energy.
3. Kinetic energy: Kinetic energy of an object is the measure of the work an object can do by virtue of its motion.
   $$\begin{gathered} \mathrm{Kinetic}\mathrm{energy}\mathrm{of}\mathrm{a}\mathrm{body}=\frac{1}{2}\times \mathrm{mass}\times {\mathrm{velocity}}^2 \\ {\mathrm{E}}_{\mathrm{K}}=\frac{1}{2}{\mathrm{mv}}^2 \end{gathered}$$
4. Potential energy: Potential energy is defined as the energy stored in an object.
   $$\begin{gathered} \mathrm{Potential}\mathrm{energy}\mathrm{of}\mathrm{a}\mathrm{body}=\mathrm{mass}\times \mathrm{acceleration}\mathrm{due}\mathrm{to}\mathrm{gravity}\times \mathrm{height}\mathrm{of}\mathrm{the}\mathrm{object}\mathrm{with}\mathrm{respect}\mathrm{to}\mathrm{the}\mathrm{reference}\mathrm{point} \\ {\mathrm{E}}_{\mathrm{P}}=\mathrm{mgh} \end{gathered}$$