The Process

  1. Research pendulums using the URLs provided below.

Galileo

1. Based on Galileo's writings summarize his five major points he discovered about the characteristics of pendulums. (5 points)

2. Which characteristic could be false based on experiments? (1 point)

3. Complete the following statement. Galileo found that the period ___________ is _______________ to the ___________ of a pendulum. (3 points)

Pendulums

4. Newton had two ideas for proving that the earth is round and rotates daily. Explain one of his ideas and why it was unsuccessful in proving that the earth rotates. (3 points)

5. Who found a way to prove that the earth rotates? When was it done? (2 points)

6. Explain how a pendulum can be used to prove that the earth rotates. Where were the first three demonstrations of the Foucault Pendulum? (6 points)

7. Name three places in the U.S. where you can see a Foucault Pendulum demonstration, and give the number of degrees of rotation at each of these locations. (3 points)

8. Where would a Foucault Pendulum show a rotation of 360 degrees? (1 point)

9. Where would a Foucault Pendulum show a rotation of zero degrees? (1 point)

10. What is the formula that determines the number of degrees that a Foucault Pendulum will rotate? (2 points)

11. What 2 values determine the ‘period of the swing’ of a pendulum? (2 points)

12. What does the period of a pendulum measure? (1 point)

13. What is the formula to calculate the period of a pendulum? (2 points)

Pendulum Clocks

14. Who invented the pendulum clock and when did he invent it? (2 points)

15. Which of Galileo’s discoveries about pendulums makes a pendulum clock keep time accurately? (1 point)

16. What 3 means have been used to drive pendulum clocks? (3 points)

Latitude finder

17. Find the latitude to the nearest second for Miami, FL, Grafton, WV, and Fairbanks, Alaska. (3 points)

18. Use the formula you found in #10 to find the number of degrees that a Foucault Pendulum

would rotate if it was placed in Miami, FL, Grafton, WV, and Fairbanks, Alaska.

Show how you calculated these values. HINT: Check calculator mode.(6 points)

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