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Communication-device design — Homework
Use this week's ideas about sound transmission and coded signals.
- 1.Why is a string telephone evidence that sound can travel through solids, not just air?
- 2.Why might a longer string on a string telephone make the sound quieter by the time it arrives?
- 3.If dot = short press and dash = long press, how many total presses does the classic SOS pattern (dot-dot-dot, dash-dash-dash, dot-dot-dot) use?
- 4.Why is a switch-based code like Morse code considered a digital system, even though it predates modern computers?
- 5.Design your own simple communication device or code using ideas from this unit, and explain how information travels from sender to receiver.
🌲 Homeschool of the FutureEighth Grade · Science · week 26 homework