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| Term | Definition |
|---|---|
| Echo | A reflected Sound wave. |
| Elasticity | The ability of a material to bounce back after being disturbed. |
| Density | How much matter, 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 is its intensity. |
| Decible | The loudness of different sounds is compared using a unit called the decibel. |
| Pitch | A description of how high or low the sound seems to a person. |
| UltraSound | Sound waves above normal human hearing ranges. |
| Infrasound | Sound with frequencies below the human hearing range. |
| Larynx | Your "Voice Box". |
| Doppler Effect | The Change of frequency of a wave as its source moves in relation to an observer. |
| Music | A set of notes that combine to make a pleasing noise. |
| Fundamental Tone | The lowest natural frequency of an object. |
| Overtone | Tones that are 2-3 times higher than the fundamental tone. |
| acoustics | The study of how sounds interact with each other and the environment. |
| Reverberation | When echoes of a sound are heard and keep bouncing back and fourth. |
| Ear Canal | The collector of sounds and directs them to a narrow region. |
| Ear Drum | Small Tightly stretched, drumlike membrane. |
| Cochlea | Fluid filled cavity shaped like a snail shell. |
| Echolocation | The use of reflected sound to locate objects. |
| Sonar | Used to find reflected sound waves in water. |
| Sonogram | Uses reflected ultrasound waves to diagnose and treat many illnesses. |