Week 10: Day 1

Today went better than I expected it to in terms of finishing things. We spent the first few minutes swapping answers for our homework (to finish previous investigation questions), and then Moh and I did investigation #5: Do nails remember? The key points to take away from this investigations are:

1. Domain is the force field around the magnet.
2. The particles inside the nail line up when it is magnetized (to magnetize it you can stroke in ONE DIRECTION with a magnet), and when it is not magnetized the particles don't line up. So, to de-magnetize it, you can drop it to shake the particles inside a nail. 

We could not do Investigation #6 due to lack of materials; I assume we skip it unless the materials do come- which is a shame because when I read it, it seemed real interesting. 

So we did Investigation #7: Funny things happen all the way down to nano, which is the last one. The interactions of magnets and iron filings in oil are very interesting to watch. We have not finished answering the questions, so the key points in the investigation cannot be properly summarized yet.

At home I attempted to complete the answers to Investigation #7 (and a few leftovers from Investigation #5). I did not expect to finish it as the sheet was long, but since we're a bit ahead of schedule we may have time to do this tomorrow where there would be more help. Tomorrow I also plan to finish any left over work from the previous investigations and everything else- like the worksheets that have crude answers and the quiz. This should take up time both in class and at home. That originally was my plan for Friday as well as starting the wind generator project, but I'm going to revise that and say complete the phET simulation to investigate electromagnetics and electricity generator first.