click below
click below
Normal Size Small Size show me how
Chapter 15: sound
Physics sound vocab
| Question | Answer |
|---|---|
| Harmonics | integers of the fundumental frequency |
| decibel | unti of measurement for sound level (dB) |
| Sound wave | a pressure variation transmitted through matter as a longitudal wave |
| doppler effect | change in frequency caused by a moving source or moving detector |
| loudness | factor percieved by the ear that depends primarily on the amp. of the wave the observer hears |
| pitch | depends on the frequency of a sound wave |
| dissonance | an unpleasant combination of pitches |
| beat | oscillation of wave amp. heard when 2 frequencies are nearly identical |
| consonance | a pleasant combination of pitches |
| fundumental | the lowest resonance frequency |
| close- pipe resonator | resonating tube with one end closed to air |
| open -pipe resonator | resonating tube with both end open |
| sound level | logarithmic scale that measures the amp. of sounds that humans can hear |