Question

13.3 List two forms of energy and give two examples of objects possessing different forms of energy.
13.4 Which form of energy is possessed by coal?
13.5 Identify the different forms of energies possessed by a glowing incandescent bulb.
13.6 A girl walks 1.5 m on a straight horizontal footpath holding her school bag over her head. Was any
work done by the girl on the school bag? Did the girl lose or gain energy in the process? Explain.​

Answer 1

Answer:

13.3 Although there are many specific types of energy, the two major forms are Kinetic Energy and Potential Energy.

• Kinetic energy is the energy in moving objects or mass. Examples include mechanical energy, electrical energy etc.
• Potential energy is any form of energy that has stored potential that can be put to future use.

13.4 Chemical energy

Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy.

Answer 2

Answer:

I think we are in the same school