| A | B |
|---|
| A high-pitched sound has a high ________. | Frequency |
| When you talk out loud, air is the _______ through which sound travels. | Medium |
| If a sound wave is vibrating very rapidly, that wave has a high _______. | Pitch |
| What determines the pitch of a sound? | Frequency |
| What is the rapid moving back and forth movement of matter? | Vibration |
| Through what state of matter does sound travel most quickly? Why? | A solid, because the molecules are closer together |
| The higher the frequency, the higher ther ____. | Pitch |
| What instrument uses sound waves to locate objects underwater? | Sonar |
| All sounds are created by ______. | Vibrations |
| A form of energy produced by vibrations is _______. | Sound |
| The apparent change in the pitch of a sound wave, as the source of the sound approaches, is called _______. | The Doppler Effect |
| The number of waves passing a given a point in a given time is ________. | Frequency |
| The technology that detects the depth, size, and distance of objects underwater by means of sound waves is ______. | Sonar |
| When sound waves are trapped, or not able to travel any further, they are ______. | Absorbed |
| Waves that pass through a material are ______. | Transmitted |
| A disturbance moving through a medium is called a(n) | Wave |
| The distance between two compressions of a sound wave is called - | A Wavelength |
