Question

F. Long-answer questions 1. What are the different units of energy? Write the relation between them.

2. Name any four forms of energy. In each case, give ways in which it is useful to us.

3. Define potential energy. Explain two types of potential energy with examples.​

Answer 1

Answer:

ans 1-1 Joule (J) is the MKS unit of energy, equal to the force of one Newton acting through one meter. 1 Watt is the power from a current of 1 Ampere flowing through 1 Volt. 1 kilowatt is a thousand Watts. 1 kilowatt-hour is the energy of one kilowatt power flowing for one hour.

ans 2-Electrical Energy.

Chemical Energy.

Mechanical Energy.

Thermal Energy.

ans 3- A spring stores elastic potential energy because it can be stretched or compressed. Potential energy is energy that is stored in an object or substance. The two main types of potential energy are gravitational potential energy and elastic potential energy.