Troy Science Waves
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19 terms
Terms | Definitions |
|---|---|
 Medium | the matter through which energy waves travel |
| Frequency | the number of wave peaks that pass by a given point every second. |
| pitch | the highness or lowness of a sound as determined by the wave frequency |
| Transverse wave | a wave in which the vibrationis side to side or up and down |
| longitudinal wave | a wave in which the vibration is forward and backward |
| Visible sprectrum | the wavelengths or frequencies of light that can be seen, including all the colors of the rainbow |
| Audio Sprectrum | the frequencies or wavelenghts of sound that can be heard, including the lowest pitch to the highest pitch |
| radio waves | has long wavelengths, carries signal too your radio, tv, and cell phone |
| visible light | only one we can see |
| Ultraviolet waves | causes sunburn; sunscreen can protect us from them |
| convex | lense that focuses light. It appears smaller |
| concave | a lense that causes light to spread out, appears larger |
| reflect | to bounce energy off an object |
| porous | describes materials full of tiny openings |
| echoes- solid wall | produces good echos beacise it reflects sound waves |
| echoes porous wall | (tiny openings) does not produce echoes beacause it absorbs the sound waves |
| signal | a communication that encodes information at a specific frequency |
| transmitter | a device that converts information into a signal |
| receiver | a device that receives a signal and converts it to information |
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