12-23-08

1/5/09 the first TPJ of 2009! Matt Pavlatos

Today in physics we started out by getting a bunch of handouts on a new unit, Unit 6 Impulse and Momentum. Mr. Manning then put up a daily question in which we had to put objects and their velocities in order according to the greatest momentum. Working with the person sitting next to us we tried to put them in the order from least momentum to greatest without having and previous practice with momentum. After our guesses we learned about momentum and what it is. Momentum is basically __what it takes to stop on object in__ motion, momentum is a property of a system, and that the symbol for momentum is a P with an arrow over top of it. After taking those notes we reviewed the daily question and learned that the object with the least amount of momentum was a 500000 kg boat a rest and the object with the most was a 40kg dog moving at 4 m/s. The greatest was the dog because it was moving the most out of all the objects listed which means it would be the hardest to stop. After that we answered 6 questions on momentum from a worksheet Mr. Manning handed out and with the remaining class time Mr. Manning went over the answers so we could see how we did and if we understand this yet. Below is a picture of pertaining to momentum. So far so good with this new unit. Later. http://webpages.uah.edu/~wilderd/momentum.jpg