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Science Chapter 11
| Question | Answer |
|---|---|
| amplitude | the measure of how energy is carried by a wave |
| Compression Wave | a kind of wave where the matter in the medium moves back and forth in the same direction that the wave travels; has compressions and rarefactions |
| crest | the highest point on a transverse wave |
| diffraction | describes the bending of waves around a barrier; can also occur when waves pass through a narrow opening |
| frequency | measures how many wave links pass a fixed point each second and is expressed in Hertz (Hz) |
| interference | occurs when 2 or more waves overlap and combine to form a new wave, can form a larger wave or a smaller wave |
| medium | any material- a solid, a liquid, or gas that a wave transfers energy through |
| rarefaction | the least dense region of a compressed wave |
| refraction | bending of a wave as it charges speed moving from one medium to another |
| standing wave | a type of wave that forms when waves of equal length and amplitude, but traveling in opposite directions continuously interfere |
| transverse wave | a type of wave such as a water wave where the matter in the medium move back and forth at a right angle to the direction the wave travels (highest- crest, lowest- trough |
| trough | the lowest point of a transverse wave |
| wave | a rhythmic disturbance that transfers energy through matter or space; it exists only as long as it has energy to carry |
| wave length | the disturbance between one point on a wave, and the nearest point just like it on the following wave, as frequency increases wavelength decreases |
| Do wave carry energy with, or without transporting matter? | without |
| Do all waves need a medium to travel through? explain | No, light waves |
| What direction do compressional, and transverse wave move in? | back and forth; up and down |
| What regions of a compressional wave is less dense, and what is more dense? | less- compressions more- rarefactions |
| Which travel faster, sound or light waves? | light waves |
| what is frequency expressed in? | hertz (Hz) |
| The more energy a wave carries the ______ its amplitude | greater |
| The less dense the rarefactions the _________ the amplitude is | greater |
| (For test know how to count wavelengths) | ⇜ |
Created by:
ChloeMJ
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