Friday, October 8, 2010

Calculating net force

We reviewed the gravity studyguide/worksheet that was completed in class on Thursday. We also learned how to calculate the net force acting on a given object. Practice problems were given in class. If you did not finish time will be given at the beginning of Monday's class. No need to complete over the weekend. Enjoy the weather...it's going to be a great weekend :)

BTW--> Go Phillies!!

Thursday, October 7, 2010

Forces review

We took notes on forces and how gravity affects objects. In class, we also completed a studyguide on gravity.

Reminder that the homework for the week is due tomorrow.

Tuesday, October 5, 2010

Mass vs. Weight

Continuing with our investigation on forces, today had us looking at gravitational force. Through the class activity and discussion you should now understand the difference (and relationship) between mass and weight.

Have completed for tomorrow: both data tables (5.1 & 5.2) and graphs for each.

Quiz tomorrow!

Monday, October 4, 2010

Investigating elastic force

This week our investigations will lead us to thinking about forces. Today, we looked at the force needed to stretch a rubber band. There are 2 questions we want to answer:
  1. What happens to the force required to stretch a rubberband when the stretching distance is doubled?
  2. Based on the graph, is there a relationship between the force needed to stretch the rubberband and the distance it stretches?
Please have your data graphed for tomorrow's discussion.

Also, HW for the week has been assigned today. See Class Info for a link to the assignments. Keep in mind that work not finished in class may be assigned as additional homework.

QUIZ WEDNESDAY! Study parts of a battery, energy forms and transformations.