AT Cycle 4
9/27 - 10/2
W 9/27
Th 9/28
F 9/29
M 10/2
🔴 2: Th 9/28a, 🟡 4: W 9/27, 🔵7: W 9/27 - circular & friction problems (2)
Today, we'll first finish the required problems on more advanced Newton's Law from Chapter 6 in Halliday and one problem from Giancoli Chapter 5:
Support: 17, 25, 27, 35, 45, 70
Required: 23, 34, 51, 57, 58, 60, 68, 98, G42
Enrichment: 21*, 22, 25, 59, 103
* Requires calculus, skip if you haven't taken it yet.
We'll also finish figuring out how fast we could go around the Bristol Motor Speedway in Nascar Problem. You'll learn about how to approach banked turn problems. We'll work in groups to try to figure it out.
If you've already finished these required problems, study for your dynamics assessment next class.
NASCAR problems banked tracks.docHomework: Study for Dynamics Assessment (chapters 5 & 6 in Halliday plus banked turns) next class! And check this out...
🟥❗ 2: Th 9/28b, 🟨❗ 4: Th 9/28, 🟦❗7: Th 9/28a - dynamics assessment
❗Dynamics Assessment TODAY!
Homework: You may have already done this last weekend, but if you have not, this is important: In order to prepare for the lab we'll do early next week, watch the video below to review how to solve work/energy problems - Giancoli Chapter 8 #27. The important thing in this video is to make sure that you understand how to make a "before & after energy diagram." This method of solving energy problems is not something that is universal amongst physics teachers, but I do think that it is helpful and virtually foolproof, so I would like to see you use it. In addition, you should be able to use the conservation of energy equation to solve energy problems. This method is different than the "Work-Energy Principle" method, so you might want to also look that up in your textbook (p. 153 Halliday) and understand how it differs from the "conservation of energy" method. Both methods work, but given the situation, one usually works better than the other. Figure out why.
For those of you who are curious, watch the video below about the dot product:
❤️ 2: F 9/29, 💛 4: M 10/2a, 💙7: Th 9/28b - energy conservation
Daily Check-in #5: Energy Conservation
With whatever time is remaining after the check-in, we'll start the 📓 conservation of energy lab.
We'll continue review of last year's material by doing a lab with energy. You'll need to find the coefficient of kinetic friction between a wooden block and the lab table. The only measurement devices are a meter stick and a balance. You cannot use any timing devices or motion sensors. You'll focus on work lost to a non-conservative force.
Homework: Have a plan for how you will complete the conservation of energy lab.
📕 2: M 10/2, 📒 4: M 10/2b, 📘7: F 9/29 - energy lab (1)
Today, we'll continue review of last year's material by doing a lab with energy. You'll need to find the coefficient of kinetic friction between a wooden block and the lab table. The only measurement devices are a meter stick and a balance. You cannot use any timing devices or motion sensors. You'll focus on work lost to a non-conservative force.
After you get a coefficient, do a secondary experiment to verify your results; you may use another measuring device for this simple verification experiment.
If you finish early, you should try to find an expression for the coefficient using another method - Newton's Laws.
Homework: Make sure your "lab write-up" completed in your lab notebook to be turned in. It's not a formal write-up. Give it a title, and make sure you have a labeled diagram of what you measured. Make sure to have some "before-and-after diagrams." Then just your measurements and calculations. This lab is due in class on Wednesday, October 4th.