Chapter 5- Energy and Energy Resources Flashcards
energy
the 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 kinetic and potential energies
energy conversions
a change from one form of energy to another
friction
a force that opposes motion between tow surfaces that are in contact
law of conservation of energy
the law that states that energy cannot be created or destroyed but can be changed from one form to another
nonrenewable resources
a resource that forms at a rate that is much slower than the rate at which it is consumed
fossil fuels
a nonrenewable energy resource formed from the remains of organisms that lived long ago
renewable resources
a natural resource that can be replaced at the same rate at which the resource is consumed