Show:
Magnetism
Electricity
Circuit
Conductors and Insulators
Electromagnets
100
What would happen if the north ends of two magnets were close together?
What is repel?
100
Socks taken from a clothes dryer that stick together or a lightning bolt in the sky are examples of ____________.
What is static electricity?
100
Is a circuit open or closed if you haven't turned on the switch?
What is open?
100
What is a material that lets electric current pass through?
What is a conductor?
100
True or False: An electromagnet is a permanent magnet.
What is False? An electromagnet can be turned on or off. Once the circuit is broken, the magnetism is lost.
200
If a south end of a magnet is close to a north end of a magnet, the magnets will _________.
What is attract?
200

The rate of flow of electrons through a conductor.

What is current?

200
What supplies current to an electrical circuit?
What is a battery (or other electrical source)?
200
What is a material that blocks an electric current from passing through?
What is an insulator?
200
True or False: An electric crane is an example of an electromagnet.
What is True?
300
True or False: All magnets have the same shape and size.
What is False?
300
If you rub your hair on a balloon and the balloon becomes negatively charged, what charge will your hair have?
What is a positive charge?
300

This circuit has only 1 path for electrons to follow.

What is a series? 

300
Which of these materials is not a conductor: copper, aluminum, gold, or wood?
What is wood?
300
True or False: A refrigerator magnet is a permanent magnet.
What is True? Even when you take it off the refrigerator, it is still magnetic.
400
True or False: All magnets have a north and south pole.
What is True?
400

Anything that slows or stops the flow of electrons

What is resistance?

400

A different path connects each appliance in a circuit.

What is parallel circuit? 

400
Which of these materials is a conductor: rubber, glass, air, silver?
What is silver?
400
An electromagnet must be part of an electrical ______.
What is circuit?
500
Will a magnet attract copper, rubber, iron, or plastic?
What is iron?
500
The force pushing electrons from - terminal to + terminal in a circuit.

What is voltage?

500
An electrical circuit is made up of a connector (wire), a load (lightbulb), a switch, and a ____________.
What is a battery (or electrical source)?
500
True or False: Pure water is a conductor.
What is False? The salts and other materials in water are conductors though. So, don't mix water with an electrical circuit!!!!
500
An electromagnet is made up of what three items?
What is an iron bar (nail), battery, and a wire?