| A | B |
|---|
| synthesizers | an electronic device that can produce a wide variety of sounds |
| amplitude | the ________ of a wave shows its volume, or loudness. |
| octave | a series of eight notes |
| hertz | the frequency of a sound wave is measured in this unit. |
| pitch | the highness or lowness of a sound |
| high | many sound waves per second produce a ________ pitch |
| low | few sound waves per second produce a ________ pitch |
| loud | waves with high amplitudes produce ________ sounds |
| soft | waves with small amplitudes produce _________ sounds |
| 346 miles per second | the speed of sound in air |
| 900,000 | the speed of light is about how many times faster than the speed of sound? |
| temperature and material | two conditions that affect the speed of sound |
| timbre | the quality of a musical note |
| overtones | every musical tone is mixed with these fainter tones |
| wavelength | distance from one compression to the next |
| frequency | the number of complete waves producd in a unit of time |
| trough | represent rarefactions, or regions of lower air pressure |
| crest | represents a compression, or region of higher air pressure |
| compression | area where particles have been pushed closer together |
| rarefaction | area where there are fewer particles than normal |
| sound | form of energy that travels through matter as waves |
| vacuum | unlike light, sound waves CAN NOT travel through this |
| vibration | back-and-forth movement of matter |
