1. M AGNETISM N OTES

2. M AGNETS Magnetic domain – region of a magnetic material where the atoms are groups together and aligned Has uniform magnetization

3. M AGNETS Poles of a magnet are the ends where objects are most strongly attracted 2 poles called North and South Like poles repel Opposite poles attract If a magnet is broken into 2 pieces, each piece will still have an N and S

4. M AGNETS Iron is the most common magnetic material Unmagnetized iron can be magnetized via conduction (stroking) or induction

5. M AGNETIC F IELD The region of space surrounding a moving charge Is a vector quantity (arrows)

6. M AGNETIC F IELD Attraction Repulsion

7. E LECTROMAGNET Electric current produces a magnetic field Made from current flowing through coils of wire (called a solenoid) Faraday’s Law: More coils = stronger electromagnet (more voltage)

8. E LECTROMAGNET