Kepler's 2^nd Law
BlackBoard Notes

======================= First Board Section =============================

If there are no external torques, is constant, and A_1-2 = A_2-3 = A_3-4 = …

Equal areas in equal times

======================= Second Board Section =============================

A_1-2 = A_triangle + A_{very small slice} ≈ A_triangle = ½bh

• Measure b and h to the nearest 0.1 cm.
• Note to Jeff: Buy balloons for the next lab!

======================= Third Board Section - on far right! =============================

• 3 labs until the Lab Practical (including this week)
  • 4 experiments, 3 hours
    • No smart phones used for calculator or music!
  • Read through the Lab Practical Info document on the lab list page for skills to be tested
  • {Two weeks after spring break} After break, equipment will be available for practice
  • {Three weeks after spring break} Next week, vernier calipers and photogates will be available for practice. Use Kaleidagraph on Physics lab computers any time the lab is open. Need something? Ask!
  • {Three weeks after spring break} Review your lab journals for instrument usage (difficult if you've been writing crappy journals!)

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©	St. Lawrence University	Department of Physics

Revised: 15 Aug 2022

Canton, NY 13617