| A | B |
|---|
| frequency | the number of times a vibration moves back and forth in one second |
| high pitch | fast frequency |
| low pitch | slow frequency |
| volume | how low or soft a sound is |
| decibels | the unit used to measure how loud or soft a sound is |
| tuning fork | a tool used to tune an instrument such as a piano |
| vibration | the back and forth movement of a sound wave that makes sound |
| pitch | how high or low a sound is |
| violin | a string instrument |
| trumpet | a brass instrument |
| clarinet | a reed instrument |
| flute | a wind instrument |
