Ch. 18 Crossword
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
 
 
Down: 1) A material that remains magnetic without outside energy being supplied2) The two kinds of electric charges4) A material, like iron, which has strong magnetic properties.5) A complete path through which electrical current can flow6) A magnet made with wires and electrical current7) A tiny imbalance between positive and negative charge on an object8) The influence created by a magnet that exerts forces on other magnets10) A fundamental property of matter that can be either positive of negative11) A material with a low electrical resistance. Metals such as coopper and aluminum are good12) A material with a high electrical resistance. Plastic and rubber are good15) The two kinds of magnetic poles Across: 3) Determines how much current flow for a given voltage. Higher the resistance means less current flows.9) The unti of electrical potential energy13) Using a moving magnet to create electric current or voltage.14) The unit of electric current16) A flow of tiny particles that carries electrical energy in wires and machines. The particles (usually electrons) are typically much smaller than atoms and can flow around and between atoms even in solid matter17) The unit of resistance. One allows 1 amp to flow when a voltage of 1 volt is applied18) The propety of creating or responding to forces from magnets.
 

 

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