SCIENCE 101 5.2.3 Explore: Clocks: Pendulum and Atomic Exploration Physics Sem 1 Points Possible: 25

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SCIENCE 101 5.2.3 Explore: Clocks: Pendulum and Atomic Exploration Physics Sem 1 Points Possible: 25 In this practice, you will apply what you have learned in the lesson. Answer the question... s below. Submit this to your teacher when you are done. 1. Use this article to answer questions about how pendulum clocks work. (14 points) How Pendulum Clocks Work a. List the three main parts of a pendulum clock. How often does the pendulum swing for cuckoo clocks and for large grandfather clocks? (3 points) b. Go to page 3 to read the section titled "A Weighty Matter." Describe what is done to a weightdriven clock to give it its potential energy. (2 points) c. What device did Christiaan Huygens suggest to make the second hand of a clock revolve in exactly 1 minute? Why would this device be ideally suited to clocks? (3 points) d. Go to page 4 to read the section titled "Experiment Time." How does the angle of the arc in which a pendulum swings affect the pendulum's period? How does its length affect its period? (2 points) e. Describe what an anchor does. Describe what an escapement gear does. How do these two devices help a pendulum overcome friction and keep swinging forever? (4 points) 2. Use this article to answer questions a special kind of atomic clock called an optical clock. (11 points) Optical Clocks—Already Ridiculously Accurate—Get Synchronized a. What are the periods in which a grandfather clock, a quartz watch, and an optical clock mark time? (3 points) b. What is an atomic clock, and what is the difference between an atomic clock and an optical clock? (2 points) c. What is the problem that scientists encounter when trying to send a signal from one optical clock to another? (2 points) d. Why is it important that two optical clocks be able to communicate with each other? (2 points) e. Read about the possible uses of optical clocks and choose one that interests you. In your own words, explain the use and how optical clocks could help improve it. (2 points) [Show More]

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