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15
×
When electric current stops flowing in an electromagnet, the magnetic field ________.
disappears
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15
×
difference in electric potential energy per charge is called
voltage
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thief
Give points!
5
10
15
20
25
×
star
Double points!
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fairy
Take points!
5
10
15
20
25
×
banana
Go to last place!
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15
×
The magnetic field is strongest at the ....................of a magnet.
poles - ends
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15
×
Define insulator.
An insulator is a material that resists the flow of electric charges.
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15
×
define electric current
continuous flow of charge
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5
×
In an electric motor, electric energy changes into ________ energy.
mechanical or kinetic
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seesaw
Swap points!
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star
Double points!
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shark
Other team loses 20 points!
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thief
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5
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15
20
25
20
×
is a material that allows electric charges to move easily through it.
conductor
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15
×
define galvanometer
a device that measures small currents
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20
×
The area around a magnet where magnetic forces act is called the ......................
magnetic field.
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10
×
Objects become negatively charged when they ________ electrons
gain
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15
×
mention the 4 methods of charging an object
conduction - friction - induction - polarization
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eraser
Reset score!
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fairy
Take points!
5
10
15
20
25
×
fairy
Take points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
×
banana
Go to last place!
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×
shark
Other team loses 25 points!
Okay!
×
gift
Win 10 points!
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×
lifesaver
Give 10 points!
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15
×
....... is the relation between magnetism and electricity
electromagnetism
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