| A | B |
|---|
| What kind of electricity works in your home or when you hook up a circuit with batteries? | current electricity |
| When electricity is turned on, the current flows through a _____. | circuit |
| 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 allos the movement of electrical energy is a _____. | closed circuit |
| A circuit that prevents the movement of electrical energy is an _____. | 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 ciruit 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. |
| Who invented the incandescent light and the phonograph and designed the world's first electric power station? | Thomas Edison |
| Who created the electromagnet? | Micheal 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 pathway taken by an electric current is a _____. | circuit |
| The discharge of static electricity in the atmosphere is called _____. | lightning |
| Electrical energy can be transformed into _____, _____, or_____. | heat, light, or mechanical energy |
| An electric current creates a _____. | magnetic field |
| A moving magnetic field creates an ______. | electric current |
| A current flowing through a wire creates a ______. | magnetic field |
| Certain iron-bearing metals attract _____, _____, and _____. | iron, cobalt, and nickel |
