18 terms

work

when a force is done on an object

joule

what is the unit for work

1 Newton meter

what is a joule equal to

power

the rate at which work is done

P=w over t

what is formula for power (spell it out)

watt

what is unit for power

potential energy, kinetic energy

what are the two forms of mechanical energy

potential energy

stored energy in an object that is held in readiness

elastic potential energy, chemical energy, gravitational energy

what are the three types of potential energy

PE=Fd

what is the formula for potential energy

kinetic energy

energy in motion

1 half mv squared

what is the formula for kinetic energy

w=change KE

what does the work energy theorem state

energy cannot be created or destroyed

what does the law of conservation of energy state

TE=PE+KE

was is the formula for total energy

photosynthesis

what is the process for plants to create energy

sun

what is the main source of all energy

nuclear and geothermal energy

what are energy sources that are not the sun (2)