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Sound
these spelling words are from jan 27 to jan 31
Term | Definition |
---|---|
Sound | A form of energy produced by vibrating objects. |
vibration | A rapid back and forth movement that produces sound. |
Pitch | How high or low a sound is. |
frequency | The number of waves that move past a point in a certain amunt of time. |
wave | A repeatingup and down or back and forth movement of matter. |
decibel | The unit used to mesure the loudness of sound. |
echo | A reflected sound |
volume | How loud or soft a sound is. |