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### 35 Cards in this Set

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 Machanical waves needs material Electromagnetic waves does not need material Transverse wave material moves perpendicular to wave motion Longitudinal (compressional) wave moves parallel to wave motion Amplitude Distance in equaliibrium Frequency number of waves that pass a given point per time Wavelength distance between similar points on adjecent waves Speed (equation) V=fy speed= Fequency x wavelength speed of air Vair= 331.5m/s+.6m/s/c X T mach= 340m/s speed of light warp= 3 x 10^8 m/s refraction Bending due to change in speed through materials *as v increases bends away from nomal reflection bounce bace incoming angle= returning angle diffraction bending around edge *slows down at edge Doppler effect change in frequency due to motion Polarization orientiong light in planes Plane mirror same size virtual image Convex (divering) mirror smaller image virtual image appears farther away -->( concave (converging) mirror At focal-no image between focal & lense- larger (vitual-closer) before focal- smaler to larger (real-infront) -->) plane lense same size virtual image concave (converging) lense smaller image virtual image )( convex (converging) lense between focal & lense- larger/ virtual beyond focal smaller to larger/ real () real image upside down can be projected virtual image right side up cannot be projected additive colors red, green, blue mixed= white substractive colors cyan, magenta, yellwo mixed= black Bow waves 2-D form a v occur when source moves faster than waves shock waves 3-d forms a cone occur when source moves faster than waves interference wave interaction constructive interference waves work together destructive interference waves work against each other standing waves 2 waves of equal fequency and amplitude travelling in opposite direction Damping reduction in amplitude as it travels out Rectilinear Propagation travels in straight line spectrums power- radiowaves- infrared- visible(roygbiv)- ultraviolet- x-rays- gamma rays- hard gamma cosmic rags intensity amplitude loudness(dB)/ brighness