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