Energy One Quiz Flashcards
Define energy
Ability to work or cause change
If objects do work they use energy
Energy = joules
Explain how the total amount of energy in the universe remains constant
First law of thermodynamics
Law of conservation of energy
Energy can neither be created nor destroyed it can only change form
What are the six forms of energy
Thermal electrical, chemical radiant nuclear mechanical
What is thermal energy
Random motion of particles friction changing temp
Electrical energy
Electric charge of motion magnets and electric circuits converted
Chemical energy
Stored in bonds Bond Adams together bond broke energy release
Food and fuel
Radiant
Charge particles Excelerator each color of light represents different amount of energy
Nuclear energy
Nuclei of Adams source movement of nuclear particle
Sun -> radiant
Mechanical energy
Objects movement position or both
Describe entropy
Nature’s tendency towards disorder
Relate energy transfer to entropy
More transfers more entropy less usefulness
Relate entropy to usefulness in a closed system
Entropy increases usefulness decreases
