Question 14
In this investigation, you will investigate ways of detecting a magnetic field. Work in pairs or groups of three.
You will need: See the diagram. You could also choose some other different types of magnets to investigate.
Method
1. Set the magnet, ruler and paperclip on a smooth surface as shown in the diagram.
2. Record whether the north or south pole of the magnet is facing the paperclip.
3. Slowly move the paperclip toward the pole of the magnet. If your bar magnet is not marked, can you devise a method to tell which pole is which?
4. Record the distance from the pole of the magnet when the paperclip becomes attracted to the magnet. Call this value d for distance.
5. Repeat another two times and record all your measurements of d.
6. Turn the magnet around so the other pole is facing the paperclip.
7. Repeat steps 3–5 for this pole.
8. If you have time, repeat the investigation with other, different, magnets.
You will need: See the diagram. You could also choose some other different types of magnets to investigate.
Method
1. Set the magnet, ruler and paperclip on a smooth surface as shown in the diagram.
2. Record whether the north or south pole of the magnet is facing the paperclip.
3. Slowly move the paperclip toward the pole of the magnet. If your bar magnet is not marked, can you devise a method to tell which pole is which?
4. Record the distance from the pole of the magnet when the paperclip becomes attracted to the magnet. Call this value d for distance.
5. Repeat another two times and record all your measurements of d.
6. Turn the magnet around so the other pole is facing the paperclip.
7. Repeat steps 3–5 for this pole.
8. If you have time, repeat the investigation with other, different, magnets.
