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Stack #4037791
| Question | Answer |
|---|---|
| sound | Sound created by vibrations that produce waves of energy that move through matter |
| vibration | Vibration back and forth movement, that causes sound |
| sound wave | Sound Wave a longitudinal wave that is caused by vibration traveling through a medium |
| doppler effect | Doppler Effect the change in pitch (frequency) as a sound gets closer to you |
| echo | Echo a reflected sound wave |
| echolocation | Echolocation the finding of an object using reflected sound |
| pitch | Pitch measures how high or low a sound is (determined by frequency)pi |
| hertz | Hertz unit measuring pitch |
| decibels | Decibels unit measuring loudness |
| loudness | Loudness measures how well a sound can be heard (determined by amplitude) |
| mechanical waves | Mechanical Waves waves that need a medium to travel (example: sounds waves & earthquake waves) |