the energy of an object's motion
kinetic energy
is a force that opposes the motion between the two objects
friction
weight x height
gravitational potential energy
have the capacity to do work
energy
are a natural resource that can be replaced at the same rate at which the resource is consumed
renewable resource
the energy of the position of the object
potential energy
formed the remains of organisms that live long ago
fossil fuels
change from one form of energy to another
energy conversions
is the law that states that the energy cannot be created or destroyed
law of conservation of energy
mv2/2
kinetic energy
equals potential energy + kinetic energy
mechanical energy
cannot be replaced or are replaced much more slowly than are used
nonrenewable resource
potential energy + kinetic energy
mechanical energy