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What is a Magnet
How does electric charge flow?
Vocabulary
Transformation of Electrical Energy
Test prep.
100
How many poles does a magnet have?
2 Poles (North and South)
100
An electric charge in motion is called ...
Electric current
100
Fill in the blank: Every magnet has two ends, which are called ______________.
Poles
100
These are the forms of energy, electrical energy changes to.
Sound energy, light energy, heat/thermal energy, and mechanical energy.
100
Electrical energy is released when...
Charged particles move.
200
True or False. Like poles attract.
False
200
Will the light turn on if the circuit is open? Why?
No because an open circuit does not have a flow of energy.
200
Fill in the blank: A region of magnetic force is called a _________ __________
Magentic Field
200
Electrical energy used for a blow dryer changes to this energy.
Heat or thermal energy.
200
A material in which electrical energy can move easily through is...
a conductor.
300
The needle of a compass turns towards the _______ Pole
North
300
What is a conductor? What is a good example of a conductor for electricity?
A conductor is a material through which electric charge can move easily. A metal.
300
A magnet made by electric current is a _________
Electromagnetic
300
How does electrical energy change for a light bulb?
It first turns into heat energy, which then turns into light energy.
300
True or Flase: To make an electromagnet stronger you add more magnets.
False.
400
Can a magnet produce electrical energy? If yes how so?
Yes. By moving rapidly back and forth between coil wires.
400
What is voltage?
A measure of the energy
400
True or False: A power source can transform movement of wind or water into electrical energy.
true
400
How does electrical energy transform when it is coiled around a nail?
It transforms to magnetic energy making the nail into a electromagnet.
400
A dryer is an example of transforming which types of energies?
500
What is an electromagnet?
A metal object that works as a magnet through electricity.
500
Describe what is around a metallic wire, in which electric charges flow.
An insulator. A magnetic field.
500
What is a generator?
A generator is a device that produces electrical energy by turning coils of wire around powerful magnets.
500
Name four appliances and how electrical energy changes when using those appliances.
any.
500
Doing this will make your electromagnet stronger.
Adding more coils and increasing the voltage of the power source.