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Mrs. Smiley's Scienc
Light and Sound Ch. 1
Question | Answer |
---|---|
wave | transmits energy through matter or empty space |
medium | substance through which a wave travels |
mechanical wave | a wave that needs a medium |
electromagnetic wave | a wave that does not need a medium |
transverse wave | particles vibrate up-and-down |
longitudinal wave | particles vibrate back and forth |
crest | the highest point of a transverse wave |
trough | the lowest point between each wave |
compression | part of a longitudinal wave where particles are crowded |
rarefaction | part of a longitudinal wave where particles are spread apart |