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- This is a pendulum of fixed length placed on some planet where gravity is
- different than on Earth. For now, all I want you to do is to measure the
- period of oscillation T and the length L of this pendulum as accurately as
- you can. If you do that well enough, the next assignment should be easy.
-
- In the "EXPERIMENT" section you hopefully found that the period is
- nearly independent from the amplitude of oscillation for small amplitudes.
- So let's keep the amplitude small, say less than 20 degrees. If the
- amplitude is initialy too large, let friction reduce it, and then turn off
- the friction (with F7) so that the amplitude will stay constant. Time 10
- or 20 oscillations using the "F9" computer timer or your own stop watch.
- Don't forget to start counting oscillations from "zero" when you start the
- timer. To find the period divide the total time by the number of
- oscillations. Repeat the measurement several times, until you get
- consistent results.
-
- To measure the length L, use the scale at the left of the assignment screen.
- This is of course a reduced scale; in reality 1 meter = 3.28 feet.
- Accurately position the suspension point just to the right of the "0m" tick
- mark and wait until the pendulum comes to rest. You can increase friction
- with F8 to make it stop faster. Estimate the position of the center of the
- pendulum bob (the end of the straight line) to a tenth of a division.
- Press F2 when you are ready to enter your answers.
-