In Charge!
Go with the Current Flow
Magnets
Eletricity-->Magnetism
Magnetism-->Electricity
100
when positive and negative charges are not in balance, it creates:
static electricity
100
A moving electric charge
Electric current
100
Magnets have how many poles?
2
100
A coil wrapped around an iron core is a
Electromagnet
100
Changing a magnetic field generates
electricity
200
A positively charged object will attract to a...
negatively charged or neutrally charged object
200
not allowing electric charge to flow easily, like a light bulb
resistance
200
Are earth's magnetic poles and geographic poles in the same place?
No
200
Name one way to increase the strength of an electromagnet
1. More coils around the iron core 2. Bigger iron core
200
the slower the coils of an electromagnet move, the ______ the current
slower
300
Lightning happens because of the release of:
Static electricity
300
an electrical circuit with one path for electricity to flow
series circuit
300
True or false: compasses work best when they are close to magnets
False
300
Earphones change electric current to...
Sound waves
300
A generator uses wires and what to create electricity?
magnets
400
An electric field gets ______ the closer you get to it.
Stronger
400
Electric current moves easily through...
Conductors
400
What happens to a magnet's poles when you cut a magnet in half?
The pieces create their own N and S poles
400
Moving electric current causes a...
magnetic field
400
a generator turns mechanical energy to
electric energy
500
Name two of the three types of energy that static electricity can change to
Sound, light, and heat energy
500
In a circuit, electricity flows with the switch is...
closed
500
An area around a magnet that is strongest around its poles
Magnetic field
500
What is the advantage of an electromagnet over a natural magnet?
The magnetic field of an electromagnet can be turned off.
500
More coiled loops of wire around a magnet make a _______ current.
stronger
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