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43 Cards in this Set
- Front
- Back
What does the symbol E stand for? |
Energy |
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What does the symbol V stand for? |
Potential difference |
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What does the symbol P stand for? |
Power |
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What does the symbol Q stand for? |
Charge |
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What does the symbol for I stand for? |
Current |
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What does the symbol T stand for? |
Time |
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What does the symbol R stand for? |
Resistence |
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What is charge measured in? |
Coulombs (C) |
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What is time measured in? |
Seconds (S) |
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What is current measured in? |
Amps |
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What is Resistance measured in? |
Ohms |
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What is power measured in? |
Watts |
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What is energy measured in? |
Joules |
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What is potential difference measured in? |
Volts |
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If you were asked to wire a house in a series circuit or a parallel circuit, what would you chose? |
Parallel, because if one bulb goes out, they don't all go out |
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True or false, static electricity describes an electric charge that is stationary on the surface of a material |
False, it is not only on the surface |
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True or false, charged objects attract neutral objects |
True |
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Why do some household appliances have three prongs? |
It helps protect against electric shocks and fires by connecting to the grounding wire |
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Why do neutral objects attract to charged objects? |
An induced charge on the object |
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What are the two types of charging? |
Induction (not touching) Contact (touching) |
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Why do bulbs go dimmer in a series circuit when more are added? |
Because the loads share electrons in series circuits |
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Using words, how would you describe the symbol for a motor |
Line->Circle with M in it->Line |
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What is the job of resistors? |
They allow some electrons to flow through but not all |
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Why do batteries end up not working after some time? |
They run out of chemicals |
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Why is it that birds don't get electrocuted when they sit on power lines? |
They're bodies don't complete a circuit |
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What is a conducting wire? |
It carries the electrons from the source to the load and back to the source |
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What is a load? |
This changes electrical energy o other forms of energy |
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What is a source? |
The main provider of electrons for the circuit |
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What is a switch? |
This controls the movement of electrons |
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What dos a ground connection look like? |
------------------------ ----- --- - |
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What is a conductor? |
A material that allows electrons to flow easily |
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What is an insulator? |
A material that does not allow electrons to flow easily |
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What is grounding? |
Grounding is the process of discharging an object by making contact to the earth |
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What is the definition of static electricity? |
Electric chargers are 'still' or static |
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What is the definition of current electricity? |
Electric charges ar eflowing |
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What does friction create? |
Static electricity |
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What three subatomic particles are in an atom? |
Electrons, protons and neutrons |
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Can protons move to other atoms? |
No |
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What is the first law of static electricity? |
Charged objects attract neutral objects |
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What is the second law of static electricity? |
Same charges repel |
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What is the third law of static electricity? |
opposite charges attract |
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On the electrostatic series list of materials, how are they arranged? |
The top is positive and materials get more negative as they go down |
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What is lightning an example of? |
Static electricity |