Refer to the middle pulley in the drawing. Show your GUESSwork.
- Think about the lab...just by looking, can you identify the ideal mechanical advantage? How?
- What input force is necessary to raise the load if it is a 10 kg mass?
- If the load is raised by 4 cm, how far would you have to pull the string?
Learning Goal: Understand conservation of energy, mechanical advantage and efficiency.
Today:
- Finish Pulley Lab (Don't forget the conclusion questions!) and turn it in.
- If you have finished and turned in the pulley lab, work on the MA & Efficiency practice sheet.
- Or the Energy Packet (skip pp. 19-20)
Assignment:
- Test Friday 2/27, over all things energy-related.
- MA & Efficiency practice sheet
- Energy Packet
- If you haven't begun working on a notecard, you should.