| A | B |
|---|
| proton | positively charged part icle of atom |
| neutron | atomic particle with no charge |
| electron | negatively charged particle of atom |
| cell | chemical supply of electrons |
| battery | 2 or more cells |
| current electricity | the flow of electrons |
| static electricity | the build up of electric charges |
| direct current | current that flows in one direction |
| resistance | produces heat in an electric circuit |
| circuit | a pathway for electric charges |
| switch | controls the flow of electric current |
| ampere | the measure of electric current |
