angle of incidence, Angle between the normal and the incident ray., dispersion, Spreading out of the different wavelengths of light, caused by refraction of light as it passes through a prism., frequency, The number of waves produced each second. The unit is hertz (Hz)., incident ray, Light ray moving towards a surface or boundary., normal, Acting at an angle of 90° to a surface or boundary., reflected ray, Light ray leaving a surface or boundary., spectrum, A series of similar waves arranged in order of wavelength or frequency., transparent, Able to be seen through., translucent, Allows light to pass through but is not completely clear., vacuum, A volume that contains no matter., lens, A transparent tool that can change the direction of a ray of light.
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light crossword
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Hjdavid
KS3
Y8
Science
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