science words about waves

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Term Definition
Compressional Wave mechanical wave that causes particles in matter to move back and fourth along the directions the waves travel
diffraction bending of waves around an object
electromagnetic spectrum complete range of electromagnetic wave frequencies and wavelengths
electromagnetic waves waves that can travel through empty matter or empty space,includes radio waves,infrared waves,visible light waves,ultra violet waves,x rays and gamma rays
frequency number of wavelengths that pass a given point in one second,measured in hertz
infrared waves electromagnetic waves with wavelengths between about one thousandth of a meter and 700 billionths of a meter
intensity amount of energy a wave carries past a certain area
law of reflection states that the angle the incoming waves makes with the normal to the reflecting surface equals the angle the reflected wave makes with the surface.
pitch human perception of the frequency of the sound
refraction change in direction of a wave when it changes speed as it travels from one material to another
reverberation repeated echoes of sound waves
transverse wave mechanical waves that causes particles in matter to move at right angles to the direction the wave travels
ultra violet waves electromagnetic waves with wavelengths between about 400 billionths and 10 billionths of a meter
wave disturbance that moves through matter and space and carries energy
wavelength distance between one point on a wave and the nearest point moving with the same speed and direction

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