electricity
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| static electricity | the accumulation of excess electric charge on an object
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| law of conservation of charge | charge can be transferred from object to object, but it cannot be created or destroyed
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| conductor | a material in which electrons are able to move easily
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| insulator | a material in which electrons are not able to move easily
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| charging by contact | the process of transferring charge by touching or rubbing
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| charging by induction | the rearrangement of electrons on a neutral object caused by a nearby charged object
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| electric current | the net movement of electric charges in a single direction
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| voltage difference | related to the force that causes electric charges to flow
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| circuit | a closed path that electric current follows
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| resistance | the tendency for a material to oppose the flow of electrons, changing electrical energy into thermal energy and light
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| Ohm's law | the current in a circuit equals the voltage difference divided by the resistance
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| series circuit | the current has only one loop to flow through
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| parallel circuit | two or more branches for current to move through
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| electric power | the rate at which electrical energy is converted to another form of energy
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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