Learn Physics – Mr. Trampleasure
Resources for high school physics students and teachers
Write the equation for kinetic energy and for momentum.
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.
Please finish data collection for both collisions an explosions. Remember that an explosion uses the spring on one cart, and both carts start with zero momentum.
Analyze all your trials, calculating the momentum and kinetic energy changes for each scenario. If you would like, you can use a Google spreadsheet template here.
Each member of the group needs to make their own spreadsheet. If you prefer to use Excel, you can download the Google Sheet as an Excel spreadsheet.
Complete all the data analysis in a spreadsheet, and develop a conclusion about the conservation of momentum and kinetic energy in each of your scenarios.
Using physics, explain why the first hill on a roller coaster always the highest.
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 distance the mousetrap arm moves.
Watch the following videos, and take notes about ideas that techniques you may use for your car (we will start with materials on Monday).
Record your notes in today’s exit ticket area and the “Three things I learned this week” section of your bookends sheet.
Before you leave today, turn in your bookends sheet (make sure your name is on it!)
Start thinking about how you might customize your mousetrap car. Each group will receive the following items, extras are are up to you. If you want to use special materials, collect them over the weekend so you can use them on Monday.
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.
File Name: gpe-word-problems.pdf
File Name: kinetic_and_potential_energy_worksheet.pdf
We went over some of the problems from last week.
Continue reading “1/27 AP Phys: The Rope Swing”
Page 152, Problems 21-24
Page 153, Problems 33, 35 (both spring energy), 47 (a red, make sure to do drawings before you start!), 29, 30, 32, 34, 43
Jackson suggests you do Problems 73 and 75; I guess I’ll have to try these this weekend 🙂
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Sound is the rhythmic motion of air particles. So, similar to thermal energy, it is a type of kinetic energy.
Humans are said to be able to hear from 20 to 20,000 Hz (cycles per second). Test your hearing range with the video below. (I can hear from about 60 to 13,000 Hz.)
The video below shows a tuning fork being lowered into a glass of water, shot with a very high speed cameras (about 50 times faster than most cell phone cameras, and even faster than the slow-mo option on phone cameras).
In the instruments below, notice how the length and/or thickness changes to make a range of notes.
We added energy equations and the work work/energy theorem to our energy knowledge. In physics, work is used to add or remove energy from a system.
Class/homework: Page 151, # 9-18
We worked on an energy simulation using the PhET Energy Skate Park simulation. You can see the assignment here, and the simulation here:
We started learning about power. Textbook Section 5.6, pages are 142-146. Solve problems 48-54 on page 154.
Here are the slides from Wednesday and Thursday
Solution for Problem 14:
Click here to see the videosToday’s slides on energy can be viewed here.
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