chapter 5 Flashcards
energy
capacity to do work
kinetic energy
the energy of an object that is due to the objects motion
potential energy
the energy that an object has because of the position,shape, or condition of the object
mechanical energy
the amount of work an object can do because of the objects kinectic and potential energies
energy conversion
a change from one form to another
friction
a force that opposes motion between two surfaces that are in contact
law of conservation of energy
the law that states that energy cannot be created nor destroyed
nonrenewable
a resource that forms at a rate that is much slower than the rate at which it is consumed.
fossil fuel
a nonrenewable energy resource formed from the remans of organisms that lived long ago.
renewable
natural resource that can be replaced.