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science stuff
| Term | Definition |
|---|---|
| echo | a reflected sound wave |
| elasticity | Ability of a material to bounce back after being disturbed |
| density | how much matter or mass there is in a medium |
| loudness | describes you perception of the energy of a sound |
| intensity | the amount of energy a sound wave carries per second through a unit area |
| decibel | loudness of different sounds is compared using a unit |
| pitch | a sound is a description of how high or low the sound seems to a person |
| ultrasound | sound waves with frequencies above the normal human range of hearing |
| infrasound | sounds with frequencies below the human range of hearing |
| larynx | when you sing you change pitch using your vocal cords your vocal cords are located in your voice box a.k.a larynx |
| doppler effect | the change in frequency of a wave as its source moves in relation to a observer |
| music | a set of notes that combine in patterns that are pleasing |
| fundamental tone | the lowest natural frequency of an object |
| overtones | the objects higher natural frequencies |
| acoustics | the differences you hear are due to the different ways that sounds interact |
| reverberation | the echos of a sound are heard after the sound source stops producing sound waves |
| ear canal | it collects sound waves and directs them into a narrow region |
| eardrum | a small tightly stretched drum like membrane |
| cochlea | a fluid filled cavity shaped like a snail shell |
| echolocation | the use of reflected sound waves to determine distances or to locate objects |
| sonar | a system that uses reflected sound waves to detect and locate objects underwater |
| sonogram | the uses the reflected ultrasound waves to create a picture |