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15
×
What machine in hospitals uses magnets?
Magnetic Resonance Imaging (MRI) Machine
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15
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What force are electricity and magnetism two aspects of?
Electromagnetism
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thief
Give points!
5
10
15
20
25
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gold
Win 50 points!
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fairy
Take points!
5
10
15
20
25
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lifesaver
Give 20 points!
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15
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How can we identify a magnet?
By testing to see if it repels another magnet
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15
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Do electrons have a positive or negative charge?
Negative
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What did Ampere discover?
The Electron
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15
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True or false: Bar magnets CAN'T be switched on or off.
True
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How do we show bar magnets that repel each other in a diagram?
The lines don't connect or join up.
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What do electrons orbit around?
The nucleus
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15
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An electromagnet can be used to separate mixtures containing which metals?
Iron or steel
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15
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Who discovered that electricity and magnetism are connected?
Oersted
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baam
Lose 25 points!
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star
Double points!
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shark
Other team loses 20 points!
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lifesaver
Give 15 points!
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15
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True or False: The magnetosphere extends through the atmosphere into space.
True
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15
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What can we use the thermal effect of electricity for?
To cook, heat water, dry our hair, etc.
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What can electrolysis be used for?
To electroplate metal objects
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banana
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seesaw
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gift
Win 25 points!
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lifesaver
Give 20 points!
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