Exploring Sound Waves
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Objective
I can describe how sound waves are produced, transmitted, and perceived.
Part 1 of 4
Warm-up video
CrashCourse · 9:39Vetted channel
We don't generate video — this one is by CrashCourse on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
Sound waves are longitudinal waves, meaning their motion occurs in the same direction as the wave travels, creating areas of compression and expansion.
- 2
The pitch of a sound corresponds to the wave's frequency, with higher frequency resulting in a higher pitch, measured in vibrations per second.
- 3
The Doppler effect explains why the pitch of a sound increases as its source moves toward you and decreases as it moves away, due to the changing distance between sound wave peaks.
Part 3 of 4
Practice
12 questions
Describe how a sound wave is created, starting with the movement of a speaker diaphragm.
Explain the difference between a displacement wave and a pressure wave in the context of sound.
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe how a sound wave is produced by a speaker, transmitted through the air, and perceived by the human ear.”
Sample answer included in the free materials
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Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
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