Y8 Physics

12345678910
Across
  1. 3. the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
  2. 6. quantity or power of sound; degree of loudness.
  3. 7. the saperation of the light into different colours
  4. 8. allowing light, but not detailed images, to pass through; semitransparent
  5. 10. the occurrence, rate, or frequency of a disease, crime, or something else undesirable.
Down
  1. 1. a substance for producing opaque areas on negatives.
  2. 2. the throwing back by a body or surface of light, heat, or sound without absorbing it: the reflection of light.
  3. 4. allowing light to pass through so that objects behind can be distinctly seen.
  4. 5. the fact or phenomenon of light, radio waves, etc., being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
  5. 9. the number of people or thing in a place when compared with a size of the place