| A | B |
| sound | A form of energy you can hear |
| crest | each high point of a sound wave |
| frequency | number of crest/troughs over a certain amount of time |
| trough | each low point in a sound wave |
| pitch | how high or low sound is |
| volume | how loud the sound is |
| acoustics | study of how sounds travel/can be controlled |
| vibrate | to move back and forth |
| ears | what you hear with |
| slower the vibration the_______ | faster the pitch |
| faster the vibration the _____ | higher the pitch |
| When sound waves hit a soft surface___ | most of the sound is absorbed |
| Instruments with thin strings ___ | create a higher pitch |
| Instruments with thick strings ___ | create a lower pitch |
| When sound wave hit a hard surface | most of the sound will bounce off the surface |
| Sound can travel through | solids, liquids, gases |
| A sound wave is a form of energy caused by | vibrations |