1. Expanding Your Horizons: Physics of Music Hints

2. What does sound “look” like?
Tone generator
Oscilloscope
Microphone
Speaker

3. Oscilloscope controls: play around!
Helps to “freeze” the wave
Changes horizontal scale
Changes vertical scale

4. Tone generator: play around!
Wave shape
Frequency
Changes frequency
Amplitude

5. What do sounds from these “look” like?

6. What does sound “look” like: Computer and LoggerPro software
Click “Collect” to capture data
Click “Examine” to determine frequency
Spectrum: tells what frequencies present in the sound
Cursor

7. When do two pitches sound “pleasing” together?
Find this program on computer desktop. Listen through headphones
Click with mouse, drag to turn and change ratio

8. Frets: Click below to hear the Superman theme
Frets: Click below to hear the Superman theme. Try playing the first few notes on the monochord.

9. Frets: Where is “fa”? L/s=4/3
2:1
3:2
1:1 s
4:3
L/s=4/3
Find s and tape a nail in the correct place to act as a fret. Play something.

10. Can you make an instrument out of a straw?
Flatten, then blow on this end. Add length as desired, and add a cone to the end.

11. Can you make an instrument out of a straw?
Sound level appears here in decibels (dB)