Act 1 Scene 1 Homework Essay

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Act I Scene 1 Homework – Graphing a Wave

A vibration is a wiggle in time; a wave is a wiggle in space and time. In this exercise, you will explore that connection by transferring the motion of the second hand of a clock (a vibration, even if a slow one), to a wave.

Print out the image of a clock and open the spreadsheet called Grapher. You will find both of them in the same item where you found these instructions.

Use a metric ruler to measure the displacement of the tip of the second hand every five seconds. That’s the distance above or below the center line that connects the 3 and the 9.
Count the number as positive if the tip is above the line (towards the 12) and negative if below
(towards the six). Enter each
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Nothing would change at all.
The frequency would change.
The amplitude would change. X

8) If you had plotted the motion of the second hand on your watch instead of the clock that you printed out, what would change about the graph?

Nothing would change at all.
The frequency would change. X
The amplitude would change.

9) Since you are plotting displacement on the y-axis and time on the x-axis, this is an example of a _____ graph.
Snapshot X frog-on-a-post 10) Are you old enough to remember the 90's television series Home
Improvement, starring Tim Allen? He was always saying “more power” and blowing up one electric tool or appliance after another by trying to make it work faster.
Suppose that he was able to make a clock run so fast that the second hand made one full lap in only one-tenth of a second (0.10 s), and suppose that it tapped a water surface each time it reached the bottom of its motion. If the waves it produced were 4.0 cm apart, at what speed (in cm/s) would they travel?

The Waves would travel

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