Thurgood Marshall Middle School
Task: Make three claims about Sound Waves and support them with evidence from today.
Breaking Glass with Voice
READ: “Seduced by ‘perfect’ pitch: how auto-tune conquered pop music”
one version to read:
An oscilloscope is an electrical testing device used to measure and “see” the frequency of an electrical signal over time. Non-electrical signals (such as sound or vibrations) can be converted to electrical signals and displayed on a screen using a microphone.
Virtual Oscilloscope A small window will pop up asking to use the microphone – click
ALLOW Switch the menu to
“Live Input” Experiment with
high-pitched noises and low-pitched noises using your voice. What do you observe? Then, experiment with l
oud noises and soft noises. What do you observe? Sketch and explain what happens to the sound waves on the oscilloscope when you change the pitch and volume.
Claim – Evidence – Reasoning
Use today’s observations as evidence to create three
claims. Cite the specific evidence and support your reasoning.
Sound is produced by…
A sound wave’s volume …
A sound wave’s pitch …