I apologize for the late scribe. Blogger was down on Thursday/Friday, and after that I myself had personal difficulties with the site. Nonetheless, I've finally succeeded.
Anywho, to recap Thursday which probably is of no relevance anymore to you folks, we completed the lab. It included the usage of bricks, string, different papers (different friction), and a cart. We tested the force required to pull the bricks on each type of paper, constant speeds at different velocities, rolling a cart or sliding, and while adding even more bricks. Although there's not much left to say, there were a few tiny observations I had made:
Moving on to Friday, it was more of a catch-up day. We were assigned the questions on the following page of the lab, which included a few thinking questions and a graph. The graph was relatively easy, and I'm sure by now most of you know how to do one. The only question I can recall was the one asking when friction is used to our advantage or is simply a hindrance. Simple answers like creating fire (advantage) and moving heavy objects (disadvantage) did the trick. We were then assigned the last few questions of the booklet, and pages "5-2" and "5-3", about kinetic friction and static friction.
Finally, today. In the beginning of class we went over all of the questions assigned to us. Since we were to hand in our booklets, which I hope most of you did, I can't recall many of the questions. We went over finding the kinetic/static frictional forces, as well as relationships between the two. For the last half the class, we were to read a few pages in the green textbook and answer questions. I again did not jot those numbers down, but most if not all of us do not have a green booklet at home anyway. We will be receiving new booklets tomorrow in class. Don't fear!
Again I apologize for the late scribe, but that's all that's happened in the last 3 days of class. If I had my booklet still, I would have been able to go over more questions but those were all I could recall. I encourage you to argue with me if i'm incorrect with any of the above information.
Good Night!
- First of all after completing all tasks, it turns out our meter used to measure the forces were completely off. I know it's too late to go back and check, but the meters we used were off by 1 or 2 Newtons, which are very critical and introduce much more error in the final results. Yes, we did everything over again.
- The relationship between the amount of bricks and force used to pull these bricks were directly proportional in our results. With that being said, as the amount of bricks placed on top were increased, force required to pull these bricks were increased. We had a result something along the lines of 5N, 10N, 15N, so on and so forth in increments of 5 Newtons.
Moving on to Friday, it was more of a catch-up day. We were assigned the questions on the following page of the lab, which included a few thinking questions and a graph. The graph was relatively easy, and I'm sure by now most of you know how to do one. The only question I can recall was the one asking when friction is used to our advantage or is simply a hindrance. Simple answers like creating fire (advantage) and moving heavy objects (disadvantage) did the trick. We were then assigned the last few questions of the booklet, and pages "5-2" and "5-3", about kinetic friction and static friction.
Finally, today. In the beginning of class we went over all of the questions assigned to us. Since we were to hand in our booklets, which I hope most of you did, I can't recall many of the questions. We went over finding the kinetic/static frictional forces, as well as relationships between the two. For the last half the class, we were to read a few pages in the green textbook and answer questions. I again did not jot those numbers down, but most if not all of us do not have a green booklet at home anyway. We will be receiving new booklets tomorrow in class. Don't fear!
Again I apologize for the late scribe, but that's all that's happened in the last 3 days of class. If I had my booklet still, I would have been able to go over more questions but those were all I could recall. I encourage you to argue with me if i'm incorrect with any of the above information.
Good Night!
