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ELECTRICITY

VARIEL

CHAPTER 15 KEY TERMS

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Across
2.the rate at which energy is transformed
3.difference in electrical potential energy between 2 places in a circuit
5.part of an electrode above the surface of the electrolyte
8.continuous flow of electric charges through a material
11.a substance that conducts electric current
13.a device that transforms chemical energy into electrical energy
15.transfer of electrons from 1 uncharged object to another by rubbing
18.loss of static electricity as electric charges transfer form 1 object to another
19.build up of charges on an object
20.device used to measure current
22.transfer of electrons from a charged object to another by direct contact
24.a material through which charges can flow easily
25.2 different metals immersed in an electrolyte
26.the measure of how difficult it is for charges to flow through a material
27.a material through which charges cannot flow easily
28.electrochemical cell with a paste electrolyte
Down
1.charges are neither created or destroyed
2.different parts of the circuit are on separate branches
4.resistence is equal to the voltage divided by the current
6.energy stored in chemical compounds
7.combination of 2 or more electrochemical cells in a series
9.the movement of electrons to 1 part of an object caused by another's electric field
10.process in which substances change into new substances
12.a complete unbroken path through which electric charges flow
14.device that creates a potential difference in in an electric circuit
16.attraction or repulsion between electric charges
17.region around a charged object where electric force is exerted
18.only 1 path for the current to take
21.electrochemical cell with a liquid electrolyte
23.device used to measure voltage

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