| A | B |
|---|
| When electricity is turned on, the current flows through a ____. | circuit |
| What kind of electricity works in your home or when you hook up a circuit with batteries? | current electricity |
| What kind of electricity was the first to be discovered? | static electricity |
| ____electricity is seen as a spark after objects rub against each other. | static |
| ____ is the flow of electric charge or the flow of electrons in a wire. | electric current |
| What do we call materials that allow an electric charge to pass through easily? | conductors |
| What is an example of a conductor? | silver, copper, aluminum |
| Why are metals good conductors? | Metals are good conductors because their electrons flow more freely than the electrons in other solids. |
| Anything that slows down the flow of electric charge in a material is called ____. | resistance |
| Resistance changes electrical energy to ___ and ____. | heat and light |
| An _____ is a substance that conducts very little electricity. | insulator |
| Name some examples of insulators. | plastic, glass, wood |
| A circuit that allows the movement of electrical energy is a _______. | closed circuit |
| A circuit that prevents the movement of electrical energy is a(n) _____ . | open circuit |
| Describe a series circuit. | The current only moves along one path. |
| Describe a parallel circuit. | The current is able to move along more than one path. |
| Which kind of circuit runs the electric appliances in your home? | parallel circuit |
| What was Benjamin Franklin’s contribution to electricity? | He proved that lightning is a form of electricity and helped develop the lightning rod. |
| I invented the incandescent light and the phonograph and designed the world’s first electric power station. | Thomas Edison |
| Who created the electromagnet? | Michael Faraday |
| How do you make an electromagnet? | By wrapping a wire around an iron-bearing metal (nail) and creating a closed circuit |
| A continuous flow of negative charges (electrons) creates an ______. | electric current |
| The discharge of static electricity in the atmosphere is called ______. | lightening |
| Electrical energy can be transformed into ___, ____, or ____. | Heat, light, or mechanical energy |
| An electric current creates a ____. | magnetic field |
| Certain iron-bearing metals attract ___. | ron, cobalt and nickel |
| electric current | A moving magnetic field creates an _______. |
| magnetic field | A current flowing through a wire creates a ________. |
