1-8-09

After being sick the day before I walked into class eager to get back to the wonderful world of Physics. Mr. Manning was once again up in the front of the class ready to start class. There was a light agenda for the day which started off with the Daily Question like always and then followed up by a lab. With a small class already there were many kids missing in action. The daily question was a multiple choice question: Whenever an interaction occurs in a system, forces occur in equal and opposite pairs. Which of the following do not always occur in equal and opposite pairs. A. Impulses B. Accelerations C. Momentum changes D. But all of these occur in equal and opposite pairs E. none of these do

The correct answer was b after a discussion between the whole class, each person giving their answer and the reason they chose it. This is the answer because mass is what affects their accelerations. If they have the same mass then they will experience the same acceleration. If they do not have the same masses they will have different accelerations.

After reading over our Lab "Collision!!- A Virtual Lab- Really!!" we went over what we were supposed to do and how we were supposed to do it. Mr. Manning helped us to create our predictions and then allowed us to go work with partners. Since my partner was not here I decided to work alone. I got a lot more accomplished by myself than with my partner surprisingly. We had to go to this website and looked at three cases that included Barbie and Ken driving their cars into each other. After finishing the results I realized that all my answers were in decimals. That seemed odd to me so I asked Mr. Manning what I had done wrong and he pointed out that I forgot that on the ruler that 1 meter really meant 100 meters. So I multiplied my answers times 100 and then received the correct answers. The bell rang and I was sad to leave a fun day of physics, but you can only have so much fun in school.