Electricity - Ch. 20 Prentice Hall Science Explorer
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| away from | show 🗑
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| charge | show 🗑
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| show | This is the energy stored in chemical bonds holding
chemical compounds together.
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| show | a complete, unbroken path through which electric charges can flow
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| show | a method of charging an object by allowing electrons to flow by direct contact from one object to another object
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| show | Electric _____ is the continuous flow of electric charges
through material that are conductors like metals.
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| distance | show 🗑
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| dry cell | show 🗑
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| show | is a region around a charged object where the object's electric force is exerted on other charged objects
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| show | In electricity, the _____ is the attraction and repulsion
between electric charges.
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| show | Chemical reactions occur between the electrolytes and
electrodes in ____ cell. These reactions cause one electrode to become negatively charged and the other electrode positively charged
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| electrolyte | show 🗑
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| electrons | show 🗑
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| show | Electric charges need __ to flow.
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| exists alone | show 🗑
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| show | Charging by ____ is the transfer of electrons from one
uncharged object to another by rubbing.
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| induction | show 🗑
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| show | Material that is ____ does not transfer electricity easily or well.
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| Parallel | show 🗑
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| Power | show 🗑
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| show | current depends on the ___ of the material it flows through and how difficult it is to flow through. The more difficult the ____, the the more difficult for the current to move through
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| show | A circuit in which there is a Single path for the electric current to flow. Adding bulbs make them dimmer.
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| show | The loss of static electricity as electrical charges transfer from one object to another is called _____.
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| show | In ___ the charges build up on an object but they do not flow continuously.
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| towards | show 🗑
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| show | ____ causes a current in an electric circuit. You can think of this word as the amount of force pushing an electric current.
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| voltage source | show 🗑
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| show | The movement of electrons from one atom to another is a current because ___ is a force moving an object some distance.
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| show | the law that states that charges are neither created nor destroyed but only transferred from one material to another.
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| conductor | show 🗑
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| show | The rod in a battery. One is often zinc and the other copper. The positive charges collect on one and the negative on the other.
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| terminal | show 🗑
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| show | a combination of two or more electrochemical cells in a series
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| wet cell | show 🗑
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| show | a connection that allows current to take an unintended path
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| grounded | show 🗑
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| third prong | show 🗑
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| show | a safety device with a thin metal strip that will melt if too much current passe through a circuit. A metalloid on the periodic table.
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| show | a reusable safety switch that breaks the circuit when the current becomes too high
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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.
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.
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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