Transcript How can you study a magnetic field?

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.
2b. Describe how the iron filings are scattered on the paper?
Patterns: lines around the magnet.
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
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.
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.
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,
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.
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.