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10
×
Electromagnets are which type of magnets: permanent or temporary?
Temporary Magnets
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10
×
Which type of magnet is used in cranes?
Electromagnets
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10
×
What is the purpose of armature in the electric bell circuit?
To make and break the circuit
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10
×
____________ poles of magnet attract each other.
Unlike
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seesaw
Swap points!
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magnet
Take 20 points!
Okay!
×
gift
Win 20 points!
Okay!
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thief
Give points!
5
10
15
20
25
10
×
By using soft iron core electromagnetism can be increased. True or false?
True
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10
×
Which type of magnet is used in speakers?
Electromagnets
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eraser
Reset score!
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gift
Win 15 points!
Okay!
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rocket
Go to first place!
Okay!
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baam
Lose 25 points!
Oops!
10
×
_____________ is the sure test for magnetism.
Repulsion
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heart
Other team wins 15 points!
Oops!
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gold
Win 50 points!
Okay!
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gift
Win 5 points!
Okay!
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lifesaver
Give 10 points!
Oops!
10
×
State the law of magnetism?
Like poles repel unlike poles attract
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10
×
___________ beats the gong until current flows in the circuit?
Striker
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10
×
The electric bell will ring even when the switch is open. True or false?
False
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10
×
The space around the magnet where its effect can be felt is called _________.
Magnetic field
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heart
Other team wins 20 points!
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magnet
Take 25 points!
Okay!
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shark
Other team loses 10 points!
Okay!
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banana
Go to last place!
Oops!
10
×
__________ can be used to remove metallic dust from the wounds.
Electromagnets
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×
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