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5
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What is an example of a magnetic material that attracts magnets?
iron
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5
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Particles with the same electric charge
repel each other
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5
×
Name two common electromagnetic inventions
high speed trains, electric bells, speakers and microphones
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5
×
The red end of the needle of a compass will always point
north
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5
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What charges don't repel each other?
a positive and a negative charge
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thief
Give points!
5
10
15
20
25
×
gift
Win 10 points!
Okay!
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rocket
Go to first place!
Okay!
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thief
Give points!
5
10
15
20
25
5
×
Protons have a
positive charge
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seesaw
Swap points!
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gold
Win 50 points!
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rocket
Go to first place!
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thief
Give points!
5
10
15
20
25
5
×
The study of how electricity and magnetism are related and how the interact with each other is called
electromagnetism
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5
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The first electric motor is also called a
dynamo
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banana
Go to last place!
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shark
Other team loses 15 points!
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shark
Other team loses 20 points!
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banana
Go to last place!
Oops!
5
×
What train uses magnets to levitate and move forward?
maglev
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5
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This is an example of an
electric circuit
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5
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In order to produce electricity, a force is needed to make an electron
leave its orbit
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5
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When an electron leaves its orbit, the atom becomes
positively charged
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5
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Who discovered the electrodynamic molecule now called the electron?
Ampere
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