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Spring 2012 Share & Tell Notes

Lee Trampleasure, Carondelet High School  – deriving the kinematics equation experimentally

Handout available here.

Students use TI calculators to derive the kinematics equations. Students graph a linear position-time graph for different constant velocity cars. Student graph the data by hand and then uses linear regression to calculate the slope which will vary from student to student as their best fit lines differ. Students then plot a constant acceleration car and graph that data in their calculators. By taking various tangent lines students create a separate graph of the velocity-time for the car. Using the equation supplied by the calculator they begin to see the relationship between their y-intercept on the y=ax+b equation from the velocity-time graph matches the b in their equation for the position to time graph (x=at^2+bt+c).

David Talcott, Carlmont High School (c/o Bree) – Planck’s constant apparatus

Proposal for new dues structure for 2014

Update: This proposal passed by membership at our April 12, 2014 meeting.

Currently our annual dues are $25 and we charge meeting fees of $20 (includes lunch). We waive fees for first-timers at our meetings (but new members still pay $10 for lunch). It has been noted that some institutions will pay for meeting fees, but not membership dues. To account for this, the following structure is being proposed:

  • $25—Corresponding Membership—Designed for people who wish to be members, but don’t come a meeting in a given academic year.
  • $45—Fee for Fall Meeting—Includes membership + lunch ($10 discount for first-timers)
  • $45—Fee for Spring Meeting— Includes membership + lunch ($10 discount for first-timers, $25 for people who attended Fall)

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