5.11

the study of energy transformations that occur in a collection of matter

it exchanges both energy and matter with it's surroundings

The law of conservation, energy can be transferred and transformed, but not created or destroyed

A power plant, does not create energy, it merely converts is from one form, to another form of electricity

light bulb, does not make light, it converts electricity to light energy

During every energy transformation, some of the energy becomes unusable

heat

a disorder form of energy

A measure of disorder

performing more energy conversions

60%

a cell creates its structures from less organized materials.