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Ch 16 Sound Vocab
| Term | Definition |
|---|---|
| echo | a reflected sound wave |
| elasticity | the ability of a material to bounce back after being disturbed |
| density | how much matter, or mass, there is in a given amount 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 (dB) | a unit that compares the loudness of different sounds |
| pitch | a description of how high or low the sound seems to a person |
| ultrasound | sound waves with frequencies beyond the normal human range of hearing |
| infrasound | sounds with frequencies below the human range of hearing |
| larynx | the voice box in which your vocal cords are located |
| Doppler effect | the change in frequency of a wave as its source moves in relation to an observer |
| music | a set of notes that combine in patterns that are pleasing |
| fundamental tone | the lowest natural frequency of an object |
| overtones | the object's higher natural frequencies |
| what causes the doppler effect | when a sound source moves,the frequency of the waves change because the motion of the source adds to the motion of the waves |
| acoustics | the study of how sounds interact with each other and the environment |
| reverberation | the echos of sound are heard after the source stops producing sound waves |
| ear canal | the narrow region of your ear |
| ear drum | a small, tightly stretched, drumlike 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 |
| what causes a sonic boom | when a shock waves forms and the sounds overlap, it releases a huge amount of energy and people nearby hear this loud nose when the shock wave passes by them |
| sonar | a system that uses reflected sound waves to detect and locate objects underwater |
| sonogram | the device used to reflect ultrasound waves to create a picture |
Created by:
maddiemclennan
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