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15 Cards in this Set
- Front
- Back
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The three methods of charging objects |
-friction: rubbing two objects together may cause some electrons to be transferred -conduction: electrons flow from the first object to another(metals) -induction: rearrangement of charges without contact |
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Define a neutral charge |
The number of electrons balances the number of protons |
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Define positive charge |
The number of electrons is less than the number of protons |
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Define a negative charge |
The number of electrons are more than the number of protons |
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What is a force |
A push or a pull on an object |
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What are the two forces |
-Attraction: force pulling objects together -repulsion: force pulling objects apart |
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What is the law of conservation of charge |
Charge is neither created nor destroyed |
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Define static electric charge |
An electric charge that stays in one place for a length of time |
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What are the three rules of charges |
-Like charges repel -opposite charges attract -charged objects attract neutral objects |
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Define an insulator |
-Materials that do not allow electrons to move easily -insulators are good at retaining static charge |
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Define a conductor |
Materials that allow electrons to travel freely through them |
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Charge is measured with a unit called________ |
Coulomb (C) |
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What is the equation for 1 C |
6.24×10 to the power of 18 times the amount of electrons |
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Give one example for each method of charging objects |
-Friction- socks on carpet -conduction-copper wire -induction-balloon on a wall |
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Give one example for each method of charging objects |
-Friction- socks on carpet -conduction-copper wire -induction-balloon on a wall |
