| correspond to the veloc… | 0.36 |
| remain constant | 0.31 |
| pass point | 0.31 |
| the number of waves | 0.47 |
| measured in hertz | 0.68 |
| calculated | 0.56 |
| measured in cycles per … | 0.51 |
| doubled | 0.44 |
| increased | 0.44 |
| absorbed | 0.44 |
| projected into the body | 0.31 |
| important for sound | 0.25 |
| shown along horizontal … | 0.25 |
| heard by the passenger | 0.25 |