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Posts in this category
2/20 PotU: More on earthquakes and tsunamis
Warm up What is the name of the wave that was destructive after the Japanese earthquake? Are we at risk of a significant one if we have an earthquake on the San Andreas Fault? Answer There were two possible correct answers to this warm up: (1) The Tsunami (a wave…Read More
2/19 AP: More momentum problems.
It looks like I’ll be back on Thursday. Still a rough throat, but the doc thinks I’ll be ready by then. I’ll probably have a wireless mic so I don’t have to strain my voice 😊 . You might also find these instruction helpful. I hope to post some videos…Read More
2/18 AP: Conservation of momentum book problems
Book reading/review Review 6.2 Conservation of Momentum, pages 166-168 Read 6.3 Collisions, pages 168-175 Pay particular attention to the Problem-Solving Strategy method described on page 173. Problems (pages 182-184) Remember that only when a collision is described as elastic can you use conservation of kinetic energy. 6.2 Conservation of momentum…Read More
2/13 PotU: Momentum and energy in car crashes
Warm up Write the equation for kinetic energy and for momentum. Video As you watch the following video, take notes in your bookends sheet (use the Friday row and the “Three things I learned…” section). You should be able to describe the phrase “crumple zones” as it relates to cars.
2/13 AP: p and K spreadsheet calculations
Today you will finish your spreadsheet calculations. Remember, momentum is a vector, so some of your velocities will be negative. Be sure to include these, and that they match the relative directions of your carts. Start with one trial and: Use formulas in the spreadsheet to calculate p, K, Δ…Read More
2/12 PotU: Momentum with Bill Nye
Warm up What has more momentum? A 2,000 kg car moving 10 m/s or a 1,500 kg car moving at 15 m/s? Show the math you used in your warmup sheet. I should be back tomorrow, so one more day of video. Please complete the worksheet as you watch the…Read More
2/12 AP: Final momentum lab day
OK, unless I get hit by a truck, I will be back on Thursday. Today, please work together to help all students complete their data collection and analysis Data analysis should include: Description of each type of collision/explosion you created. A list of the percent momentum and percent kinetic energy…Read More
2/11 AP: More on momentum
My lengthy illness (severe sore throat, doc says it’s not coronavirus, but I did get tested for strep today) has presented an opportunity that I have always wanted to do, but never had the nerve to go through with: Set a class to work on a topic and let them…Read More