- Read this article for understanding. Be an active reader, taking notes as you read. Summarize it in our own words. Relate it to yourself: how could you use this? How HAVE you used it?
- IFF you have time while waiting for others to finish...Go to Raise.me, make sure your profile is up to date.
Learning Goal: Understand what work is.
Today: Begin the It's All Uphill Lab
- Materials: Scale/force probe, dynamics cart, meterstick/ruler, board/ramp, graph paper, masses, protractor
- PURPOSE: Determine the effect of the angle of incline upon the force needed and upon the work done when pulling a cart up an incline to the same height at a constant speed.
- PRO-TIPS:
- make sure your setup is flexible enough to set the ramp at several different angles while pulling the cart to the same height every time
- use a scale that is as close as possible to your expected force measurements
- Be careful about the angle with which you pull the cart. Refer to your notes about what counts as work!
- You will be responsible for producing
- Data table showing incline angle, force, displacement and work for each trial (5 data points minimum).
- Graphs on graph paper or spreadsheet of force vs. incline angle and work vs. incline angle. Each graph should include a best-fit line.
- Demonstrate the Big Three in the lab: Precision, Accuracy, Consistency
Assignment:
- Energy Unit Assignment Sheet
- Due 2/15: packet pp. 1,4
- Due 2/16: Video Notes on Power
- Due 2/13: Watch and take notes about work FOR UNDERSTANDING (you are only responsible for material up to time 8:18 in the video). Use Cornell or other organized format notes. Remember that good notes can use text language, drawings, charts, sample equations, etc. (You may also be interested in this video, but it is not required. It does not go into as much detail about work as the assigned video, and it goes further than you are responsible for.)
- Find time to finish packet work