| Physics for the Inquiring Mind [Phys 105] Fall 2005 |
[1] Finish up any of the work on Experiment 1.1, Exercise 1.2, and Exercise 1.3 that you did not finish yesterday.
[2] In your kit are two spring scales. Note that they are calibrated to read the strength with which you are pulling on them.
[3] With one group member holding one of the spring scales and a different group member holding the other one, hook the ends of the scales together. In this configuration, each of the scales will be reading the strength with which the person holding it is pulling. One group member should now try to pull on the scales, while the other tries not to pull back. What happens?
[4] Compare the readings on the two scales as you vary the strength with which each group member pulls.
[5] Complete Experiment 1.4 on p.279 of your text, with the following modification: different group members should hold the permanent magnet and the ferromagnet. You need not close your eyes.
[6] By using a magnaprobe, determine the location of the poles for each of your permanent magnets. These poles are the positions of strongest attraction. Label each pole with a piece of tape.
[7] Using your magnaprobe, determine the answer to the following question “Do like poles attract or repel?”.
[8] Pole types are defined in the following way: The pole of a magnet that points towards the Arctic region of the Earth is defined to be the North Pole. The other pole is called the South Pole. Label on your pieces of tape whether each pole is North or South.
[9] As Homework for Tuesday, September 6, do Exercises 1.5 and 1.6 on p. 279.
[10] Enjoy the long weekend!