Radio waves transmitted through space at 3.00108 m/s by the Voyager spacecraft have a

Phy101 Reflection Bending of a wave due to hitting a barrier; On the Surface of Medium; Water or Ground Refraction Bending of a wave due to a change in the Medium Interference when one wave crosses with another and their energies add together Law of Superposition (Superposition Principle) when more than one wave occupies the same space, at the same time Constructive Interference when the crests of waves over lap and produce a wave of increased amplitude Destructive Interference then a crest and a trough over lap and reduce the amplitude Diffraction Bending of a wave around a barrier Polarization waves exhibit different properties or behaviors depending on the direction the light enters (polarized sunglasses block glare) Doppler Effect an apparent change in motion in the frequency of the wave due to the source. Wavelength distance it takes for the wave to repeat itself Frequency Number of waves per period Period time for one complete vibration frequency Speed How fast a wave is moving; Speed=Frequency/Wavelength Crest/ Trough Crest is the top of the wave while the trough is the bottom Compression When a longitudinal wave is being pushed together Rarefactions When a longitudinal wave is being pulled apart Transverse waves moves perpendicular to its direction of motion (Crest and trough) Longitudinal Wave moves parallel to its direction of motion (Compression and Rarefactions) Torsional Waves Twisting Waves Mechanical Waves waves that require a medium to travel through (Water or Ground) Converging Lens Thick in the middle, Convex Diverging Lens Thic