Name: _____________________________________________ Date: __________________________ Class: __________
LAB: Magnetism Web-Quest
Use the following website address to complete this activity. WRITE IN BLACK/BLUE INK.
http://www.ndt-ed.org/EducationResources/HighSchool/Magnetism/magnetismintro.htm
1. What conclusions can you make about these items and magnets?
2. What is a magnet?
3. How do you think something becomes a magnet?
4. What is different about the items that attract to a magnet and items that do not attract?
5. How do you think magnets originated?
6. What is happening when you cut the magnet?
7. How small can you make a magnet before it no longer acts like a magnet?
8. What are the two types of motion that the electrons of an atom exhibit?
9. Which scientist's model of the atom do we generally use?
10. In the previous experiment you saw how the electron spins and travels around the nucleus
of an atom. What does that cause to happen?
11. What are paired electrons?
12. How do paired electrons affect the magnetic properties of a material?
13. What happened to the piece of metal when you rubbed a strong magnet across it the first
time? The second time?
14. What do the arrows in the material represent?
15. Why do they become lined up when the magnet is brought in contact with the metal?
16. If you wanted to turn a paper clip into a magnet, how could do it?
17. What happened to the blue pole of the compass arrow when it was brought close to the
north pole of the magnet?
18. What happened to the blue pole of the compass arrow when it was brought close to the
south pole of the magnet?
19. What is a compass and what direction does it always point?
20. What would you expect to happen if a magnet is suspended by a string and allowed to hang
freely?
21. From your observations, what can you conclude about the earth's magnetic properties?
22. What happened when you placed the circular piece of metal in the magnetic lines of flux?
Outside the lines?
23. What do the lines around the bar magnet indicate?
24. If the Earth is like a huge magnet, with a magnetic pole at the north end and another
magnetic pole at the south end, what might these imaginary lines look like around the
earth?
25. What is happening when iron particles are sprinkled over and around the magnets?
26. Do you see any differences in the patterns in each of the three situations? If so, what
differences do you see?
27. What do the patterns indicate in each situation?
28. Can you tell by these patterns where the magnetic forces might be the strongest? The
weakest?
29. Can you tell by these patterns where the magnetic forces are attracting? Repelling?
30. What is happening in this experiment?
31. What conclusions can you draw about magnets and magnetism from this experiment?
32. Describe what happens when the power is turned on in this activity.
33. How can turning on the electricity allow the iron crane to pick up the car?
34. Are electricity and magnetism are somehow related? Justify your answer.
35. What happens to the compass needle as the compass moves around the wire carrying
electrical current?
36. Why do you think this happens?
37. What happens to the galvanometer needle when the magnetic lines of force from the
magnet interact with the electrical wire?
38. When the galvanometer needle moves to the right, what does it tell you about what is
happening in the wire?
39. Why does the galvanometer needle return to zero when the magnet stops moving?
40. What happens each time you reverse the electrical current in the wire?
41. What would happen if we used alternating current (AC) instead of direct current (DC) in
the wire?
42. From what you have observed in this experiment here, can you explain how an electric
motor works?
43. Why is important that alternating current is supplied to our houses?