Physics Lab: Atwood's Machine
Goal: Determining the amount of friction in a pulley system.
- 2 Identical plastic pulleys
- Standard masses that can be hung
- nylon fishing line or thread able to sustain masses used
- tape measure or other linear measuring device
- Review the following sources for lab design possibilities:
- Design an experiment to determine the friction in the pulley itself.
- What materials, in addition to those listed, will you need?
- What data will you collect? Identify the data and units you will use.
- What variables (key factors) can you vary to look for trends or dependencies?
- What controls can you put in place to isolate your key factors?
- What calculations will you perform to analyze the data?
- What steps must you take to measure the data you will need?
- How will you minimize error in your collection methods?
- Use an appropriate method of data presentation (graph, table).
- Perform an appropriate error analysis.
Use the format outlined in the Student Guide to complete your report.
Post your report to the Lab Assginment for this lab at the Moodle.
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