Glossary of Terms...Electrifying
Get "Current" with these Science
Terms
Amp
Unit of electric current
Attract
pull
Chemical energy
Energy stored in the bonds of chemicals
Circuit breakers
Cut off the current if it reaches dangerous levels
Conduction
Pass on their energy
Electromagnetic radiation
Wave energy
radio waves, microwaves, infrared rays, X-rays,
gamma rays
Energy
The ability to do work; comes in different forms; can be
transformed form one form into another
Energy conversions
One kind of energy can be changed into another kind of
energy
electrical energy coming into a lightbulb is
transformed into light and heat energy
Forms of energy
Light, sound, heat, electricity
Fossil fuels
Buried deposits of decayed plants that have been converted to
crude oil, coal, natural gas or heavy oils by exposure to heat
and pressure in the earths crust over millions of years
Heat energy
Passes from hot objects to cooler ones; travels by conduction
through solids, and by convection through fluids only
Hydroelectric Power
the energy of flowing water spins a turbine to produce
electricity
Insulators
Poor conductors of heat
plastic, wood, cork, fiberglass, air
Kinetic energy
Movement energy
Law of Conservation of energy
Energy can neither be created nor destroyed; energy can be
converted from one form to another
Magnetism
An invisible force exerted by magnets and electric currents
Nuclear energy
energy released when an atoms nucleus splits or fuses
Parallel circuit
Has two or more branches so that each branch gets full voltage
from the source
Photosynthesis
A process in which green plants use solar energy to make chemical
(food) energy
Potential energy
The energy stored until the object is released
Power stations
Send electricity to substations
Radiation
Heat energy traveling as infrared rays of electromagnetic
radiation
Repel
push
Resistance
The degree to which materials resist the flow of current
Series circuit
All the components are connected on after another, so that they
share the voltage of the source
Solar energy
the energy from the sun
Solar cell
Absorbs energy from the sun and converts it to electricity
Sound waves
Vibrations that occur in a material as sound passes through it
Static electricity
Based on the structure of an atom; electricity that does not flow
Wind Power
Capture wind energy and convert it to electrical energy