Electricity Basics
Currents
Circuits
Magnets
Electromagnets
100
Electricity is the flow of these.
Electrons
100
These materials allow the flow of electrons through them.
Conductors
100
This is a circuit with only one path for electrons to flow.
Series Circuit
100
These are naturally occurring magnets in nature.
Lodestones
100
Name the three things we used to make an electromagnet.
Battery, copper wire, and a nail
200
An atomic particle found in the center of an atom, that has no charge.
Neutron
200
Batteries are an example of this kind of current.
Direct Current (DC)
200
If a circuit is all wired correctly and the switch is up, you have this kind of circuit. Is the light bulb on or off?
Open circuit, light bulb would be off.
200
Opposite poles of a magnet do this.
Attract
200
Give an example of an object that uses electromagnetism.
fan motor,electric can opener, telephone,door bell, etc.
300
A positively charged particle found in the nucleus of an atom.
Proton
300
These materials prevent or stop the flow of electrons.
Insulators
300
A circuit with two paths for electrons to move through.
Parallel Circuit
300
If had two magnets with the south poles facing each other what would happen?
They would repel each other.
300
How is an electromagnet different from a regular bar magnet?
It is a temporary magnet. It only works if an electrical current is running through it.
400
This is created when electrons build up on the surface of an object.
Static Electricity
400
Heat in a toaster is produced when electrons flow through a conductor that has high or low resistance?
high resistance
400
If a light bulb is on, the circuit is complete and we call this an open or closed circuit?
Closed
400
True or False: When magnets are broken into smaller bits, the bits themselves become small magnets.
True
400
What are the parts of an electric motor?
Permanent magnet, electromagnet, and energy source
500
A particle found orbiting around the nucleus of an atom and have a negative charge.
Electron
500
This is the unit used in the measurement of current (#of electrons)
Ampere or Amps
500
The force which moves electrons through a circuit.
Volts/voltage
500
Explain how a magnet can lose its magnetism.
The particles in the domain become scrambled or out of line.
500
Japan and Germany have used electromagnets in this new transportation technology.
Maglev trains
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