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Response Time
If you send a signal over a fiber optic cable to another computer and get a response, the response time (tresponse) depends on the distance between you and the computer (L) and the velocity of light traveling through the cable (v) as well as the amount of time it takes the other computer to process your signal (tprocessing) according to this equation:
| Subject: Algebra Topics: Expressions and Equations Grades: 8 - 12 Knowledge and Skills: - Can evaluate expressions by substituting values for variables - Can simplify expressions using correct order of operations - Can do basic operations on both sides of an equation in such a way as to preserve the equality |
Download Teacher Guide: Response Time (PDF)
Download Student Activity: Response Time (PDF)
Algebra in the Real World Movie:
Communication at the Speed of Light
Tiny glass filaments carry so much information that all the books ever written could be transmitted over a single fiber optic cable in a few seconds. This technology is at the heart of 21st century communications systems.
Running time 1:44 minutes.
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