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15
×
A substance that resists or stops the flow of electrons.
Insulator
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15
×
Electrical devices can do the job of mechanical devices _________ quickly and efficiently
even
more
same
less
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15
×
What is resistance?
opposition to current
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15
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Magnetism is an atomic _________ that can attract or repel ferrous substances through space, air, or solid matter
Force
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15
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If a conductor has excess electrons it has a __________ charged.
Positive
Half
Negative
Full
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15
×
If a circuit has 12 volts and 3 Ohms how many amps of current does it have?
4 amps
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15
×
Like charges ______ each other
Repel
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banana
Go to last place!
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magnet
Take 10 points!
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fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 25 points!
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15
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Electricity has 3 basic functions to produce ________, _________, and _________.
light, heat, and motion
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15
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Unlike charges _______ each other
attract
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15
×
What is a frame-ground circuit?
uses the metal structure of the vehicle to return electricity to power source
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15
×
What uses a frame-ground circuit that we used daily?
vehicles
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heart
Other team wins 25 points!
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seesaw
Swap points!
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fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 25 points!
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thief
Give points!
5
10
15
20
25
×
seesaw
Swap points!
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gift
Win 15 points!
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thief
Give points!
5
10
15
20
25
15
×
What is voltage?
Electrical force
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15
×
True or False? A frame- ground circuit and a one wire circuit are the same.
True
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