Video for today: https://youtu.be/IBeYzIpUges?
Goals:
1. Complete the Knowledge Inventory
Warm-Up
None
Classwork
1. Complete the Knowledge Inventory.
https://sites.google.com/site/mralexandersscienceweb/physics/daily-agenda-classwork/day-139
Once complete review your answers by watching this video https://youtu.be/IBeYzIpUges?t=362
2. Play around a bit with the "waves on a string" simulator we'll be using tomorrow
https://phet.colorado.edu/en/simulation/wave-on-a-string
Goals SWBAT
1. describe how sound is created in musical instruments
2. Define sound related terms
WARM-UP
1. How does a violin make sounds?
2. How does a piano make sounds?
3. bass?
4. saxophone?
5. drum?
6. What do all these sound making devices have in common?
7. through what medium(s) do those sounds get to your body?
CLASSWORK
1. 140A: Guided Reading: Sound
Over the next four days, we'll create instruments to explore concepts of pitch, beats, constructive/destructive interference, resonance. You'll learn how to make a whistle, harmonica, a bit about how to make a radio, and how noise cancelling headphones work. Today's reading & questions are meant to arm you with an arsenal of terms and ideas to help you navigate through the learning process as it relates to sound.
Textbook pages LINK
HOMEWORK
Complete 140A. Be prepared to share out 1-2 answers tomorrow for credit.
3. Describe how a radio "tunes in" to a station
1. Natural frequencies
- Bells
- What is resonance?
amplified natural frequency
- radio
- glass shattering