Sound Waves

Sound Waves

1. the pitch of a note increases if the frequency of the sound wave increases

2. the loudness of a note of a note increases if the amplitude of the sound wave increases

3. Sound waves cause the ear drum to vibrate, and the vibrations send signals to the brain

4. the conversion of sound waves to vibrations of solids only works over a limited frequency range, so human hearing is limited

5. Echo sounding

   • uses pulses of high frequency sound waves to detect objects in deep water

6. The ear

   • the ear can detect an enormous range of sound waves of different intensities as well as a wide range of frequencies