Bar Magnets
Electromagnets
Static Electricity
Insulators and
Conductors
Electric Circuits
100
Bar Magnets have two poles called...
What is north pole and south pole
100
True or False: An electromagnet can be turned off.
What is true
100
Charges can be either _______________ or _____________.
What is postitive or negative
100
Electricity and heat CAN flow through this easily.
What is a conductor.
100
An electric circuit has THREE main parts. They are...
What is a battery/power source, an insulated wire, and a load.
200
A north pole is attracted to a ....
What is a south pole
200
What THREE things do you need to make an electromagnet?
What is an iron nail, an insulated wire, and a battery.
200
A negative charge is called a(n) ...
What is electron
200
True or False: Metal is a good insulator.
What is FALSE
200

True or False: Electric Circuits need a switch of some sort.

What is FALSE

300
Like poles do this
What is repel
300
An electromagnet is a ___________ magnet.
What is temporary.
300
Why do you have to "charge" your balloon before it will stick to the wall?
What is to build up the electrons
300
Why does a wire need insulation?
What is because the insulation prevents the wire from getting too hot and burning you.
300

When we flip the switch to turn of the lights, why does the room go dark?

What is the circuit breaks and stops the flow of electrons.

400
True or False: A bar magnet is a permanant magnet.
What is true.
400
What determines how strong your electromagnet is? (TWO THINGS)
What is the amount of coils around the nail and the size of the battery.
400
A common static electricity found in nature is ...
What is lightning
400
Give an example of an insulator.
What is wood, oven mitt, rubber, plastic, or glass.
400

If you have a circuit board with one battery and one light bulb, and you add another light bulb, what happens to the lights?

What is they become dimmer.

500
If you cut a bar magnet in half, this happens...
What is nothing... it is still a magnet / becomes a new magnet
500
Why does an electromagnet SOMETIMES continue to work even after you have disconnected the battery?
What is because the magnetic field is still strong due to the number of coils.
500
When you rub a balloon on your hair, you are giving it a negative charge. As you pull the balloon away, your hair stands up. WHY?
What is the positive charges in your hair are attracted to the negative charges in the balloon.
500
Why does a coat keep your warm?
What is because it keeps your body heat close to you/doesn't let your body heat escape.
500
When you have a circuit board that has a small battery and a light bulb, and you replace the battery with a larger battery, what happens to the light?
What is it becomes brighter.
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