F - Magnetism

Question 1

Describe an experiment to measure magnetic fields.

Answer 1

• Use iron filings and a sheet of plastic.
• Place the magnet under the plastic.
• Sprinkle iron filings over.
• Tap gently to evenly distribute.
• The filings will show the field lines.

Question 2

Which direction you do draw the arrows on magnetic field diagrams?

Answer 2

from North to South

Question 3

Describe another experiment to measure magnetic fields.

Answer 3

Place compass at end of magnet.Mark position of the end of compass. Move end of compass needle to new mark and repeat

Question 4

What does it mean if the field lines are closer together?

Answer 4

The magnetic field is stronger where lines are closer together

Question 5

How do you create a uniform magnetic field?

Answer 5

Use two permanent bar magnets.	Place the south of one magnet opposite the north of the other magnet	Place them at the correct distance apart to get evenly spaced lines.