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Vocabulary 1 - Quarter 4

Amplitude Volume of a wave ( the height of a wave)
Compression a force that tends to shorten or squeeze something, therefore decreasing its volume
Longitudinal Wave Wave in which the particles of the medium vibrate in the same direction that the wave travels.
rarefraction a decrease in the density and pressure of a medium, such as air, especially when caused by the passage of a wave
Electromagnetic spectrum the complete range of frequencies of electromagnetic waves from the lowest to the highest, including in order, radio, infrared, visible light, ultraviolet light, X-ray, and gamma ray waves
reflect when light bounces off of something
visible light wave energy we can see, made of colors
transverse wave in which the particles of the medium vibrate at right angles to the direction that the wave travels
wavelength distance between two corresponding points of adjacent waves
waves the disturbance or vibration, of a medium and moving through a medium
frequency pitch, high or low (length of a wave)
electromagnetic waves a wave of energy having a frequency within the electromagnetic spectrum
infrared rays like light but lying outside the visible spectrum at its red end
refraction the bending of a ray when it passes at an angle from one medium to into another in which its speed is different
scatter to cause to separate widely
ultraviolet beyond the violet spectrum, corresponding to light having wavelengths shorter than 4000 angstrom units
visible spectrum the portion of the electromagnetic spectrum that is visible to the human eye
Created by: Ms. Long 6