4.1 what is energy
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kinetic energy
1/2 x mass x speed^2
Power
Energy transferred / time
How are energy, work, and power related?
Since the transfer of energy is work, then power is the rate at which energy is transferred, or the amount of energy transferred in a unit of time.
Energy
The ability to do work or cause change
What are two types of energy?
The two basic types of energy are kinetic energy and potential energy.
potential energy
energy that results from the position or shape of an object
gravitational potential energy
potential energy related to an object's height
kinetic energy
the energy an object has due to its motion
elastic potential energy
the energy associated with objects that can be compressed or stretched
gravitational potential energy
weight x height
