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Sound Vocab
| Question | Answer |
|---|---|
| echo | a reflected sound wave |
| elasticity | the ability of a material to bounce back after it is disturbed |
| dencity | the ratio of mass to volume |
| loudness | perception of energy of a sound |
| intencity | the amount of energy carried through a substance per second |
| decibel | a unit of how loud a sound is |
| pitch | perception of the frequency of a sound |
| ultrasound | sound wave with the frequency over 20,000Hz |
| infrasound | sound with frequencies lower then the human hearing range |
| larynx | 2 folds of tissue that make up the voice box |
| Doppler effect | the change in frequency of a wave as its source moves in relation to an observer |
| what causes the Doppler effect | when a sound source moves, the frequency of the wave changes because of the motion of the source adds to the motion of the waves |
| what causes a sonic boom | when an object breaks the sound barrier |
| fundamental tone | the lowest natural frequency of an objoct |
| overtone | the natural frequency that is multiple of the fundamental tone's frequency |
| acuostics | the study of how sound interacts with its surroundings |
| reverbration | the echoes of a sound that are heard after it stops producing sound waves |
| ear canal | the narrow part of the ear leading to the ear drum from the outside of the ear |
| eardrum | a small, tightly stretched, drumlike membrane in the ear |
| cochlea | a fluid filled cavity in the inner ear that is shaped like a snail shell |
| echolocation | the use of reflected sound waves to determine distance or to locate |
| sonar | |
| sonogram |
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Butters the Toast
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