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WAVES #1
Vocabulary 1 - Quarter 4
Term | Definition |
---|---|
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 |