Physics is the study of matter and energy. Physics is mankind’s attempt to gain a more comprehensive understanding of the physical (non-living) environment.
Matter is what everything is made up of; from a grain of sugar to the World Trade Center. Energy on the other hand gives us the ability to do work. Therefore Energy is the ability to do work. We need energy to run, walk, digest our food, breath, sing etc. Cars, phones, planes, ships, light bulbs, radios and all electronic devices need energy to work/function. This is because energy exists in many different forms such as; thermal, electrical, nuclear and mechanical energy.
Please research the history of physics, because it’s an important part of the study of physics. Also look up what is meant by concepts, laws and theories in physics for your all round development.
The image was taken from Google Images.