9-26

The class started with a daily question that can be seen to the top of the page as an aide. The question involved two teams in a game of tug of war. You are given the amount of Newton's that each person on the team is pulling and you must decide which team will win. To find the answer you had to add the number of Newton's on each team and see who had more. In this case, Team Aristotle beat team Galileo by pulling 10 more Newton's. Mr. Manning then reminded us about the test that we will be taking on Wednesday and that we should be working on our review packets that will also be due Wednesday and collected before the test. We then worked on page 14 which is titled "Unbalanced Forces." It was only two questions that had to be answer individually. While we worked on this Mr. Manning used an example to help us answer the questions be putting a certain amount of force onto a small car, and seeing how far it moved and what the acceleration was. When we finished with that, we went to the first of two pages that we collected at the beginning of class which was called "Autocontrol." Autocontrol (page 15), was a rap that dealt with net force and would help us later with another worksheet. So Mr. Manning told us that as a class we would need to rap. Joey volunteered to do the main verses while the rest of the class just did the refrains. Joey did a very good job. We then worked on page 16 titled "Net Force Concept Questions". It was seven questions and it had to do deal with asking about magnitude and friction and depending which one was greater would determine whether they were equal or in favor of one more than the other. One of the main points was that when you are traveling in a car on the highway at 60 M/Hr that you were a balanced force. We then moved onto the second thing we collected at the beginning of class called "Static Equilibrium Lab." This lab asked the question that "if you hang a weight from a ruler, and attach the ruler to any number of spring scales and move the weight to different places on the ruler, would it effect the reading of the scales. The class took a few minutes to write down some predictions and then Mr. Manning pulled out his man made example. He went around the room and got some predictions from students, but before he could perform the experiment, we ran out of time and had to stop. He then told us that in addition to working on our review packets over the weekend we had another assignment. If at any point over the weekend we were in a car with someone on the highway that was traveling at a constant speed we were to yell "EUREKA!" When the other person asked why we said eureka we were to explain to them that the car was a balanced force and then explain to them just what that meant.