Waves 0.0 / 5 ? PhysicsWavesGCSEAQA Created by: evie rowlandCreated on: 23-09-13 18:53 59678312410 Across 1. these are waves that can travel through a vacuum; no medium is needed (15) 4. the amount of waves per second (9) 7. when light changes direction as it crosses the boundary of two different mediums (10) 9. the oscillations of this wave travel parallel to the direction of energy travel (12) 10. when light bounces off a surface (10) Down 2. the oscillations of this wave travel perpendicular to the direction of energy travel (10) 3. an area with no particles (6) 5. the spreading of waves when they pass an obstacle or through a gap (11) 6. a flat surface that reflects light (5, 6) 8. these are waves that need particles to vibrate through a medium (10)
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