Physics - Electricity Lessons 1-12

appliances

are labelled with the energy star symbol which indicated that a product meets or exceeds high-efficiency standards.

matter

is made up of extremely tiny particles called atoms

Filament

becomes so hot that it glows

Protons

a stable subatomic particle

Hydrogen

a chemical element

Ohmmeters

an instrument for measuring electrical resistance

electric circuit

a path for transmitting electric current

Joule

unit of energy

electrical device

a device that uses electrical energy to perform any task