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20 terms

Energy

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Energy
the ability to do work or cause change in matter.
Energy Transfer
movement of energy from one place to another.
Electrical Circuit
a closed-looped path of wire through which an electrical current flows.
Electrical Current
the movement of a charge or the flow of electrons in a piece of matter that conducts electricity.
Insulators
matter that does not conduct heat very well.
Radiation
the process of transferring heat from light waves
Light
radiation that we can see.
Reflection
the bouncing of heat or light off of an object.
Refraction
the bending of light as it moves from one material to
Heat
the energy moving particles have.
Resource
any material that can be used to satisfy a need.
Natural resources
a resource found in nature such as plants, animals, air, soil, water, minerals, and fossil fuels.
Nonrenewable resources
a resource that cannot be replaced once it is used up or that would take millions of years to replace.
Renewable resources
a resource that we won't run out of or that can be replaced in our lifetime.
Conservation
the use of less of something to make a supply last longer.
Pollution
anything that dirties or harms the environment
Kinetic energy
the energy an object gains by moving.
Potential Energy
the energy of position or stored energy.
Conduction
the transfer of heat between objects that are touching.
Convection
the transfer of heat by a moving liquid or gas.