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Electricity 5.4
| Question | Answer |
|---|---|
| electricity | A form of energy caused by the movement of electrons. |
| conductor | A material that allows heat and electricity to pass through it easily |
| insulator | A material that does not allow heat or electrons to move through it easily. |
| electric current | the flow of electrons |
| circuit | a path for an electrical current to flow around |
| open circuit | an incomplete electrical circuit in which no current flows |
| closed circuit | a complete circuit through which electricity flows |
| static electricity | the transfer of negatively charged particles between materials |
| electromagnet | a coil that has a soft iron core and that acts as a magnet when an electric current is in the coil |
| radiant energy | energy carried by light waves |
| mechanical energy | the energy associated with the motion and position of everyday objects |
| thermal energy | Heat energy |
| Current | the river-like movement of something (water, electricity) |
| Examples of Conductors | Silver, copper, aluminum, brass (metals) |
| Examples of Insulators | rubber, plastic, wood |
| Examples of Static Electricity | a lightning strike, rubbing a balloon with a piece of wool, rubbing your sock feet across the carpet |
| Electric energy --> Radiant energy | A lamp turns electrical energy into radiant (light) energy |
| Electric energy --> Mechanical energy | A fan turns electrical energy into mechanical (movement) energy |
| Electrical energy --> Thermal energy | A toaster turns electrical energy into thermal (energy) |
| Magnetic field | An electrical current flowing through a wire creates a: |
| What affects the strength of an electromagnet? | The number of "loops" in the wire around the iron core. The amount of voltage can also affect the strength - more voltage- more magnetism |
| direction & speed | Describes an objects MOTION |
| Speed | How FAST something is moving |
| friction | Stops movement and creates heat |
| repel | The force of two magnets pushing each other apart (N-->N or S-->S) |
| attract | The force of two magnets pulling each other together (N-->S or S-->N) |
| Static | Not moving |
| Circle | Math term that is the root of the word "CIRCUIT" |
| Ben Franklin | This man is credited with "discovering" electricity |
Created by:
MrLittle5
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