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
2/13 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.
2/12 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
2/10 PotU: More energy
Hi all. I’m out for another day or two (extreme sore throat, no, not caronavirus!) Warm up Draw an energy bar chart set for the mousetrap car as it goes from (1) fully wound up to (2) moving across the floor and finally (3) stopped on the floor. Today you…Read More
2/7 PotU: Designing your mousetrap car
Warm up Using physics, explain why the first hill on a roller coaster always the highest. Designing your mousetrap car Next week you will build, test, and the mousetrap car. As you build it, you will also determine the work done by the mousetrap spring by measuring the force and…Read More
2/6 PotU: Video review for energy transformations and forces
Warm up Sketch the following roller coaster, then draw energy bar charts for Position A, B, and C. No stamp today, but you will get credit for completing the warmup section for today. Lesson Video day. What the main video and answer the questions on the handout. You may ask…Read More
2/5 PotU: Kinetic and gravitational energy practice
Hi all. I’m out sick today, so we’ll have to put off mousetrap cars. Today you’ll have some more practice with calculating kinetic energy. Honors students, you’ll work with a new equation for gravitational potential energy in the second worksheet. Documents
1/30 PotU: Waves math
From the Waves on a String packet, we were able to develop the wave equation: speed = wavelength x frequency or, using symbols: s = λ x f Units for each variable are: speed in m/s wavelength in meters frequency in Hz (‘Hertz’) Measurements of a wave are shown below.…Read More