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Published byFranklin Pearson Modified over 9 years ago
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Have to go through a medium (air, water, rock) The disturbance travels not the particles.
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Does not have to pass through a medium Particles move up and down
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Crest- the highest point Trough- the lowest point Rest position - the position of the wave before any disturbance
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the greatest distance that wave particles move from their rest position
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Fig. 7.2
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the distance between one point in the wave to the nearest point just like it Transverse: › Crest to crest › Trough to trough Longitudinal: - Compression to Compression - Rarefaction to Rarefaction wavelength
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–shorter wavelength higher frequency 1 second
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Humans can hear 20Hz to 20KHz Lose hearing of high pitches as you get older Bass lower frequency and less energy
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1. Indicate the interval which represents one full wavelength. A. a to c B. b to d C. a to g D. c to g
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Type of RadiationWavelengthDangerousDetected ByBlocked By RadioLongestNoRadio Receiver Viaducts, Power lines MicrowavesLongerNoHeated FoodWater Infrared (heat)LongNoThermometerClouds Light (ROY G BIV) MediumNoEyes Ultra VioletShortYesSkinOzone Layer X-RaysShorterYesFilmEarth’s Magnetic Field GammaShortestYesGeiger Counter Earth’s Magnetic Field
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Three Series of Spectral Lines of Atomic Hydrogen Fig. 7.9
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Emission and Absorption Spectra of Sodium Atoms Fig. 7.B
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