Some basics about matter and energy

Here are some things I have learned about matter and energy while attending college for hvac/r.

*Matter is a substance that takes up space and has a weight

*The density of a substance tells us its mass-to-volume relationship

*An example of fossil fuel is natural gas

*There are 746 watts of electrical power in 1 horsepower

*Gas molecules travel in a downward, upward, and sideways direction

*The only new energy we get is from the sun

*The law of conservation of energy states that Energy can neither be created nor destroyed but it can be converted from one form to another

*Work is equal to force x distance

*Matter can be either be a solid, liquid,or a gas.