Electricity
What are the two types of charge that exist?
Positive(+) and Negative(-)
How do you represent an open switch when drawing a circuit diagram?
*see whiteboard*
What are the names of both ends of a magnet?
Poles (north and south poles)
What is an electromagnet?
Define the following term
Electricity
A charge moving through a circuit
Give two examples of objects that are Conductors.
Copper, Aluminum, Steel, Iron, Silver
How do you draw a battery in a circuit diagram?
*see whiteboard*
Which pole of a magnet would be attracted to the south pole of another magnet?
North pole
How long will an electromagnet remain magnetic?
As long as there is an electric current. Once the current stops, it is no longer a magnet
Define the following term
Charge
The amount of electrons on an object compared to the amount of protons
An atom has Protons, Neutrons, and Electrons. Which of these has a neutral charge?
Draw a circuit with 2 lights in parallel
*see whiteboard*
Why do some magnets repel each other?
The have the some poles facing each other
Do electromagnets have poles?
Yes
Define the following term
Insulator
Any material that does NOT allow electrons to move through them
What is the charge of the object on the board?
Negative
Draw a Circuit with two parallel switches. Each controls a pair of lights that are in sequence.
*see whiteboard*
What happens to a permanent magnet with one north pole and one south pole when it is broken into three pieces?
Each piece will have a north and south pole
How can you make an electromagnet stronger?
Larger battery(more electricity)
More wraps of wire around the core
Define the following term
Magnetic FieldAn area around a magnet that it affects
6 protons, 7 neutrons, 6 electrons
Neutral
When you insert an electromagnet into a circuit, which end of the electro magnet is the north pole?
The input (closest to the negative of the battery) will be the north pole
What makes solid magnets able to be permanently magnetic?
The orientation of their atoms are all aligned with their poles in the same direction
What machine uses electromagnets to move?
The DC Motor (electric motor)
Define the following term
Current
The rate of electrons flowing through a wire