Task: Make three claims about Sound Waves and support them with evidence from today.

Part 1:

Mini Drums

Big Drums

Breaking Glass with Voice

Part 4:

Oscilloscopes

• 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.

• Go to 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 loud 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.

Part 5:

Auto-Tune

• READ: “Seduced by ‘perfect’ pitch: how auto-tune conquered pop music”

• Choose just one version to read:

  • Full Article

Claim – Evidence – Reasoning

Use today’s observations as evidence to create three claims. Cite the specific evidence and support your reasoning.

• 1. Sound is produced by…

  2. A sound wave’s volume …

  3. A sound wave’s pitch …

Move on to SOUND AND HEARING