1. How can you study a magnetic field? 2. a. Describe what happens to the iron filings as you tap the paper. They move into patterns around the magnet. Patterns: lines around the magnet. 2b. Describe how the iron filings are scattered on the paper?

2. 4. Describe the patterns produced by the filings on the paper. Lines circle to the end and the ends go out. a.Are the filings in lines or are they solidly grouped. The filings are both in lines and solidly grouped. b. What do you think the pattern made by the filings represent? Where the magnetic field is

3. 4c. Where are the greatest and the least concentrations of filings. Around the ends and on the sides 4d. Now, where are the greatest and least forces located around the magnet? Why? The greatest forces are on the ends and the least are in the middle or far from the magnet.

4. 6. How does the iron filing pattern correspond to the distance at which the paperclip is attracted to the magnet. Where there are more clumps of filings, the paperclip attracted the most, when there were fewer lines, the paperclip attracted the least. 7. Why doesn’t the magnet need to touch a magnetic object to attract it? Because there is a magnetic field around the magnet.

5. 8. How can a magnet attract a paperclip without touching it? There is a magnetic force around the magnet called a field. 9. Based on your observations, which is the strongest part of the magnet? Give at least two reasons for you answer. There are more lines/clumps of filings at the ends, and the paperclip moved from farther away at the ends,

6. 9. a. What could you do to show where the force is strongest around a magnet? Check the pull from every direction around the magnet. 9. b. How could you use a bar magnet and iron filings to find out whether or not the magnetic field goes all around a magnet? Notice how the filings change position at every point around the magnet.

7. 10. How could you use iron filings to determine whether an object has a magnetic field or not? Complete this same lab./ activity over any object. Notice how the iron filings act.