Formula for PE
GPE (J) = weight (N) x height (M)
Formula for KE
KE = 1/2 MV²
Law of Conservation of Energy
energy neither created nor destroyed, only transformed or transferred. Energy absorbed = energy released
Ratio of useful energy to total energy
Saving total amount of energy to begin with
TE (not def)
KE increases, TE increases, temp increases, only 40% usuable
moves from 1 place to another
changes from 1 type to another
objective, measurements, real numbers
set of numbers close to one another
numbers closest to the true value
stored energy due to object being above ground
force on objects/substances in contact; resists motion
movement of TE from hot to cold (b/c of temp dif)
measure of average energy per molecule
any theory not disproven (disproved)
energy stored in bonds of atoms
energy transferred by rapid movement of electromagnetic fields
energy transferred by vibration of object
energy stored in nucleus of atoms
energy stored by stretching or compresion
Electric (static) PE
energy stored by buildup of charges (electrons or ions)
Electric (current) KE
movement of charge/energy from 1 place to another
process by which energy is transferred dicrectly when materials touch
Materials w/structure that easily allows energy transfer (ex. copper)
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