1. Do Now: Take out notebook and pencil
Start a new Do Now page on page
At top of page write Do Nows for week of 11/6
What is electricity?
What causes it?

2. Engage Video

3. The following notes go on page 43
Magnet- a device which attracts iron or other magnets, and produces a magnetic field
Magnetic field- a force field present around a magnet that exerts a force on another object(s)
Force is greatest next to the magnetic poles
North (+) or south (-) ends are the poles

5. Opposite poles of 2 magnets produce an attractive force, while the same poles repel each other

6. Most objects made of iron, cobalt, or nickel can also become magnets.
Normally the atoms are arranged randomly, but if an electric current is passed through it the atoms line up and face one way
The flow of electrons (electricity) produces a magnetic field

7. The clusters of aligned atoms are called magnetic domains
A wire wrapped around an iron object sends a current and creates a larger magnetic field

8. Electromagnets are useful because they can be turned on and off by stopping and starting the flow of electrons
Electromagnetic Induction- a moving electric current creates a magnetic field and a moving magnetic field makes an electric current
Used in electric motors and generators
Loud speakers, MRI machines, large magnets at junk yards