light and sound

suzie P. (United Kingdom)
9 words 107 learners

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Full list of words from this list:

words only definitions & notes
  1. wavelength
    a way of thinking or coming to mutual understanding
  2. light
    electromagnetic radiation that can produce visual sensation
  3. frequency
    the number of occurrences within a given time period
  4. infrared
    having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end
  5. opaque
    not transmitting or reflecting light or radiant energy
  6. prism
    a polyhedron with two congruent and parallel faces
  7. shadow
    a dark shape created by an object blocking a source of light
  8. energy
    forceful exertion
  9. photon
    a tiny bundle of matter that transmits light
Created on Tue Nov 23 16:58:10 EST 2010

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