Physics - Sound

Physics - Sound

1. Amplitude

   • Higher - louder
   • Lower - quieter

2. Wavelength

   • Longer - lower
   • Shorter - higher

3. Sound moves through particles

4. The closer the particles, the better the sound travels

   • Sound does not travel through vacuums

5. v=fλ

   • Different frequencies travel through air at the same time

6. Human hearing = 20Hz to 20,000 Hz

7. Any high frequency sound above 20,000Hz = ultrasound

8. Low pitch = long wavelength, low frequency

9. High pitch = short wavelength, high frequency