12-1-2008

On Monday December first I was the physics journalist. We started out with the daily question like we always do. Todays daily question was as follows: 1.    Identify the action/reaction pair for your weight. 2.   Witch is larger? 3.   How does a helicopter get its lifting force? When we discussed the answer to the daily question we found that the action/ reaction pair for your weight is your body pushes on the earth and the earth pushes on your body. They are both equal because action reaction pairs are always equal because of Newtons third law. __Balanced forces__: Fg= earth pulls on box Fn= table pushes on box __Action reaction__: Box pushes table Table pushes box Table pushes earth Earth pushes table Earth pulls box Box pulls earth This diagram was also discussed in class, it shows a box sitting on a table. There are three action reaction forces but only one balanced force. The balanced force is different from the action reaction because the balanced force balance each other out.