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energy
the ability to cause change or do work
joule
the SI unit used to measure energy/ work
potential energy
stored energy
kinetic energy
the energy an object has due to its motion
law of conservation of energy
energy can be converted, not created or destroyed
kinetic theory of matter
matter is small particles- ions, atoms, molecules
particles are organized by state of matter
particles always moving
have different amounts of kinetic energy, and move in different ways
temperature
average kinetic energy of all particles
plasma
electrically charged gas
fast particles
mix or electrons and positive ions
kinetic theory of gases
particles in constant random motion
large #s of tiny particles
collission sbetween particles are elastic
no forces of repulsion or attraction
kinetic energy is proportional to temp
ideal gas
molecules occupy empty space
have no interactions
obey all gas laws
most gases arent ideal
phase changes
caused by transfer of (heat) or (thermal energy)
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