energy Flashcards
kinetic enerygy
energy enerygy a moving object has because of its motion depends on the mass and speed of the object
potential energy
stored energy an object has due to ist position
elastic potential energy
energy when an object is compressed or streched
chemical potential energy
energy stored in chemical bonds
gravitational potential energy
energy by due to thier position above eaths surface depends on the distance above earths surface and the objects mass
mechanical energy
su of the potential energy and kinetic energy in a system
law of conservation of energy
states that energy can never be created or destroyed
work
transfer of energy that occurs when a force makes an object move measure in joules
power
amount of work done of the amount of the energy transferred divided by the time required to do the work or transfer energy measured in watts
machine
device that makes doing work easier by increasing the force applied