Across
- 1. waves that are created as a result of vibrations between an electric field and a magnetic field
- 4. motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance
- 5. the change in direction of a wave passing from one medium to another
- 9. a wave that is an oscillation of matter and is responsible for the transfer of energy
- 11. the time that it takes a complete cycle or wave oscillation to occur
- 12. the number of cycles or vibrations per unit of time
- 14. the process of drawing conclusions based on evidence and reasoning
- 16. occurs where two waves are completely out of phase
- 18. an observed change in the frequency of a wave when the source or observer is moving
- 19. determined by the frequency of sound waves
Down
- 2. when the path difference between successive crystal planes is equal to an integral number
- 3. the distance between identical points in the adjacent cycles
- 6. a wave that oscillates in time but whose peak amplitude profile does not peak in space
- 7. the substance that transfers the energy from one thing to another
- 8. the maximum displacement or distance moved by a point on a vibrating wave measured from its equilibrium position
- 10. the highest surface part of a wave
- 13. when light bounces off of an object
- 15. the spreading of waves around obstacles
- 17. the lowest surface part of a wave