click below
click below
Normal Size Small Size show me how
Sound.
MacMillan F12.2
| Question | Answer |
|---|---|
| The part of the sound wave with many particles pushed together | compression |
| The part of the sound wave with few particles | rarefaction |
| A series of rarefactions and compressions traveling through a substance | sound wave |
| The substance through which the wave travels | medium |
| A region that contains few or no particles | vacuum |
| The transfer of energy when a wave disappears into a surface | absorption |
| When sound waves hit a flat, firm surface and much of the energy bounces back | echo |
| The number of times an object vibrates per second | frequency |
| How high or low a sound is | pitch |
| A change in frequency due to moving away or toward a wave | Doppler effect |
| The height of a sound wave | ampitude |
| Finding food or other objects using sounds and the returning echoes | echolocation |
| Sound Navigation and Ranging; a system scientists developed using sound waves to find things underwater | sonar |