Show:
Magnetism
Electricity
Circuit
Conductors and Insulators
Electromagnets
100

What is the invisible area around a magnetic called?

What is a magnetic field?

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

Does a circuit need to be open or closed in order to be working?

What is closed?

100

What is a material that lets electrons move through it, allowing the electric current to 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
True or False: Like charges attract and unlike charges repel.
What is False? Like charges repel and unlike charges attract.
200

What supplies current(energy) to an electrical circuit?

What is a battery?

200

What is a material that blocks the electrons, not allowing an electric current to pass 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

What happens to the other light bulbs in a series circuit when one light bulb goes out?

The rest go out as well.

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

Charging an object by rubbing materials together.

What is friction?

400

What happens to the light bulbs in a parallel circuit when one goes out?

The rest of the lights stay on.

400
Which of these materials is a conductor: rubber, glass, air, silver?
What is silver?
400

An electromagnet is made up of what three items?

What is an iron bar (nail), battery, and a wire?

500

What are the three elements on the PT that are magnetic?

What is iron, nickel, and cobalt?

500

Charging a neutral object without directly touching it. 

What is induction?

500

What are the three necessary parts of an electric circuit?

What is a battery, wires, load (light, bell, motor), and a switch.

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
What are three ways to make an electromagnet stronger?

Increase the number of coils, increase the battery voltage, and increase the size of the nail.