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21 terms

Electricity Vocabulary

Vocabulary words for the 4th Grade Electricity Unit.
STUDY
PLAY
insulator
a material that electric current CANNOT flow through easily
conductor
a material that electric current CAN pass through easily
closed circuit
a closed path that allows energy or electricity to flow
open circuit
a broken path that does NOT allow energy or electricity to flow
series circuit
a circuit that has two or more objects on one electrical path
parallel circuit
a combination of circuits that have two or more paths for objects to have an electrical path
magnetic field
the space around a magnet where the force of the magnet can act
permanent magnet
a magnet that keeps or retains its magnetism after the energy source has been removed
electromagnet
wires wrapped around a metal object and connected to an energy source like a battery
electricity
the flow of electric charges
static electricity
An electric charge that stays on an object. Causes shocks.
attract
to draw to itself, pull toward
repel
to push apart of force away
Benjamin Franklin
Invented the lightning rod.
Discovered electricity.
Michael Faraday
invented dynamo and discovered the electromagnet
Thomas Edison
perfected the invention of the light bulb
dry cell
an electrical battery
switch
an electrical component that can break an electrical circuit
thermal energy
Comes from the motion of tiny particles in matter. The faster the particles move, the warmer the matter can get. Examples are stoves and matches.
radiant energy
Electromagnetic energy that travels in transverse waves. Examples are visible light, x-rays, radio wave, and solar energy.
mechanical energy
Matter in motion. An example is an airplane soaring through the sky.