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Sound Vocab (CH16)
Sound Vocabulary
Term | Definition |
---|---|
echo | A reflected sound wave. |
elasticity | The ability of a material to bounce back after being disturbed. |
density | Is how much matter, or mass, there is in a given mount of space or volume. |
loudness | Describes your perception of the energy of a sound. |
intensity | The amount of energy a sound wave carries per second through a unit area. |
decibel | The loudness of different sounds is compared using a unit. |
pitch | 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 | sound with frequencies below the human range of hearing |
larynx | voice box |
doppler effect | the change in a frequency of a wave as its source moves in relation to an observe |
music | set of notes that combine in patterns that are pleasing |
fundamental tone | The lowest natural frequency of an object. |
overtone | A natural frequency that is multiplied of the fundamental tone’s frequency |
acoustics | The study of how sounds interact with each other and the environment. |
reverberation | The echoes of a sound that are heard after a sound source stops producing sound waves. |
ear canal | A narrow region leading from the outside of the human ear to the eardrum. |
ear drum | 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 distances and locate objects |
sonar | A system that uses reflected sound waves to detect and locate objects underwater |
sonogram | An image formed using reflected ultrasound waves |