force and motion
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Created by:
christypage on March 24, 2009
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18 terms
Terms | Definitions |
|---|---|
 conduction | the transfer of thermal energy caoused by particles of matter bumping into each other |
| friction | a force that keeps objects that are touching each other from sliding past each other easily |
| conductor | a material that electric current can pass through easily |
| insulator | a material that curent cannot pass through easily |
| electric current | a flow of electric charges |
| circuit | a path that is made for an electric charge |
| resistor | a material that resists that flow of current but does not stop it |
| electric cell | a device that supplies energy to move charges through a cell |
| series circuit | a circuit that has only one path for current |
| paralled circuit | a circuit that has more than one path along which current can travel |
| magnet | an object that attracts certain materials, such as iron or steel |
| magnetic pole | the end of a magnet |
| magnetic field | the space all around a magnet where the force of the magnet can act |
| electromagnet | an arrangement of wire wrapped around a core, producing a temporary magnet |
| carbohydrates | nutrients that should be your main source of energy each day |
| proteins | nutrients that give you energy and help build and repair cells |
| fats | the nutrients that give you the greatest number of calories for the amount of food eaten |
| balanced diet | food choices that give you the amounts of different nutrients you body needs. |
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