How does light behave

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Across
  1. 3. In the resistance of a wire practcial the temperature what kept the same. What variable was this?
  2. 6. This is the frequency multiplied by frequency
  3. 7. this type of circuit has components opposite one another
  4. 11. this is the differntce in energy between two points
  5. 13. What type of waves does light travel?
  6. 14. What type of waves does sound travel?
  7. 15. To increase the strength of an electomagent we increase the number of _______
Down
  1. 1. Transverse waves are when waves are _______ to the direction of energy travel
  2. 2. In reflection the angle of ________ is equal to the angle of reflection
  3. 4. These rays have the highest frequency and shortest wavelength
  4. 5. This is the distance between two crests
  5. 8. This is the number of waves per second
  6. 9. What is it called when light is bent through materials?
  7. 10. This is the flow of electrons
  8. 12. the units for reistance is measured in _____