1. Looking at Sound Presented by

2. Activity: Dancing Salt MathScience Innovation Center 2010

3. Sound A form of energy produced and transmitted by vibrating matter. – Vibration: back and forth movement of molecules It travels in waves. MathScience Innovation Center 2010

4. Waves Complete to and fro movement There and back Full cycle MathScience Innovation Center 2010

5. How many full cycles? MathScience Innovation Center 2010 3 cycles3 waves

6. Wavelength the distance between one part of a wave and the same part of the next wave. MathScience Innovation Center 2010

7. Demonstration: Coil Spring MathScience Innovation Center 2010

8. Frequency MathScience Innovation Center 2010 the number of waves moving past a point in one second.

9. MathScience Innovation Center 2010 Which sound do you think has the higher frequency? time low high

10. Pitch MathScience Innovation Center 2010 the measure of how high or low a sound is. depends on the frequency of a sound wave.

11. MathScience Innovation Center 2010 Which sound do you think has the higher pitch? time low high

12. MathScience Innovation Center 2010 Which sound do you think sounds louder? time soft loud

13. MathScience Innovation Center 2010 Activity: FREEZE!

14. MathScience Innovation Center 2010 1.7 0.554 2.86 3.132 1.799

15. Making Music MathScience Innovation Center 2010

16. E Notes: F G A B flat C D E F MathScience Innovation Center 2010 Higher Pitch Shorter Pipe G

17. Twinkle, Twinkle Little Star MathScience Innovation Center 2010 F melody CCD CC D C harmony AABBA F Twin-kle,Twin-kle lit-tle star

18. Twinkle, Twinkle Little Star MathScience Innovation Center 2010 melody GF harmony BBAAG GFGFEEC How I won-der what you are

19. Twinkle, Twinkle Little Star MathScience Innovation Center 2010 melody C C G harmony AABB AA G FG F C Up a-bove the world so high

20. Twinkle, Twinkle Little Star MathScience Innovation Center 2010 F melody CCD CC D C harmony AA BB A F Like a dia-mond in the sky.

21. Twinkle, Twinkle Little Star MathScience Innovation Center 2010 melody GF harmony BBAAG GFGFEEC Twin-kle,Twin-kle lit-tle star

22. Twinkle, Twinkle Little Star MathScience Innovation Center 2010 melody C C G harmony AABB AA G FG F C How I won-der what you are.

23. Looking at our Song with the Waveport MathScience Innovation Center 2010

24. Review: Sound is caused by _________________ of matter MathScience Innovation Center 2010 vibrations The faster the vibration, the higher the _________________________. frequency or pitch The bigger the vibration the __________ the sound. louder

25. Chladni Plate MathScience Innovation Center 2010