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waves
Question | Answer |
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Compressional wave | A shock wave that compresses the medium through which it is transmitted. Also, compressional wave. Compare expansion wave. |
diffraction | Change in the directions and intensities of a group of waves after passing by an obstacle or through an aperture whose size is approximately the same as the wavelength of the waves. |
electromagnetic spectrum | The entire range of radiation extending in frequency from approximately 1023 hertz to 0 hertz or, in corresponding wavelengths, from 10-13 centimeter to infinity and including, in order of decreasing frequency, cosmic-ray photons, gamma rays, x-rays, ultr |
frequency | Also, fre·quence. the state or fact of being frequent; frequent occurrence: We are alarmed by the frequency of fires in the neighborhood. |
infrared waves | a wave with a frequency between 300 GHz and 400 THz |
intensity | Physics The amount or degree of strength of electricity, light, heat, or sound per unit area or volume. |
pitch | Any of various thick, dark, sticky substances obtained from the distillation residue of coal tar, wood tar, or petroleum and used for waterproofing, roofing, caulking, and paving. |
refraction | Refraction is the bending of light as it passes from one substance to another. Here, the light ray passes from air to glass and back to air. |
reverberation | Having a tendency to reverberate |
transverse wave | a wave in which the direction of displacement is perpendicular to the direction of propagation, as a surface wave of water. |
ultraviolet waves | Ultraviolet rays. Invisible light rays with a wavelength shorter than that of visible light but longer than that of x rays. |
wave | The most important part of this definition is that a wave is a disturbance or variation which travels through a medium. |
wavelengh | The distance between one peak or crest of a wave of light, heat, or other energy and the next. |
amplitude | the state or quality of being ample, especially as to breadth or width; largeness; greatness of extent. |