| A | B |
|---|
| pitch | the highness or lowness of sound |
| low pitch | long, loose material vibrating will create this |
| low frequency | equals low pitch |
| high pitch | short, thin material vibrating will create this |
| high frequency | equals high pitch |
| volume | loudness of sound |
| frequency | number of waves per second |
| Hertz | unit of measure for frequency |
| sound quality | size, shape and instrument type may effect this |
| compression | part of a sound wave with bunched up particles |
| rarefaction | part of a sound wave with spread out particles |
| noise | unpatterned sound |
| vibrations | what creates sound |
| sound | a type of energy that travels in waves through a medium |
| resonance | vibrating at the same frequency |
| violin, flute, piano | may have the same frequency and pitch |
| vacuum | an area with little or no matter |
| matter | anything that has mass and takes up space |
| medium | matter that carries a wave, like sound |
| false | there is sound in space |
| true | sound is slower than light |
| patterned | an audiogram of music is this |
| chaotic | an audiogram of noise is this |
| thick | a string that is more _______ will create a lower pitch |
| tight or tense | a string that is more _______ will create a higher pitch |
| dense | because solids are more______, it's easier for sound to travel through them |
| sonic boom | the wave produced when an object exceeds the speed of sound |
| Doppler Effect | the phenomenon that occurs with sound and movement |
| decibels | how volume is measured |
| echo | the reflection of sound |
| echolocation | bats and dolphins use this to find their way or prey |
| interference | the intersection of sound waves |
| constructive interference | increases the energy, volume and amplitude |
| destructive interference | flattens the wave, lowering the volume and protecting your hearing |
