Internet Search - Magnets
10 extra credit points
Name:_______________________________
Date:____________ Period:_________
Visit each site and follow instructions on this sheet.
1. What are magnetic poles?
What are magnetic fields?
Which poles attract each other? Which poles repel each other?
2. Click "ON" and observe the magnetic fields of the bar magnet. Draw them.
3. Try the levitating magnets.
4. Read how electromagnets work. You will have to go through the entire section.
What is the basic idea behind an electromagnet?
Why is an electromagnet "temporary"?
Draw a diagram of a simple electro-magnet.
Read about the experiments to try. We will try this experiment in the room during the electricity unit.
5. What do scientists think the magnetic fields of the earth are caused by?
6. Look at the Diamagnetically stabilized magnet levitation. You can try this in class for 5 bonus points.
7. Watch how a speaker works. Click on the microphone link to see how a microphone works
8. What is the principle behind the electric guitar pickup? Click on link B. Are pickups the same as microphones?
Click on Theory. Draw a picture of the pickup.
Click on Usage. What is the pitch of sounds from a bridge pickup? What do sounds from the neck pickup sound like?
9. What is the unit of magnetism?