ability to do work, meausured in different units depending on type of energy
conservation law of energy
energy can not be created or destroyed. energy can be converted from one type to another
mechanical energy
energy associated with motion (motors, engines)
internal motion of matter, matter changing state from solid to liquid to gas
chemical energy
energy that bonds atoms together (fuels, batteries, food)
electromagnetic energy
energy of electrical charge (light, electricity, Gamma rays)
nuclear energy
energy locked inside nucleus of an atom (fission and fusion)
chemical energy storage places
fats, carbohydratres, proteins
measure of how much energy is stored
1 calorie of energy
increase in temp of 1 gram by 1 degree celcius
calculating calories
vol of water x deltaT x 1
nonrenewable sources
fossil fuels and nuclear
renewable sources
biomass, solar, wind, hydroelectric, geothermal