waves 0.0 / 5HideShow resource informationPhysicsWavesGCSEAQACreated by: kate167Created on: 02-05-14 19:37 83610579214 Across 1. When an object or substance vibrates, it produces (5) 4. measures to top to the middle (10) 5. Sound waves and light waves change speed when they pass across the boundary between two substances with different densities, such as air and glass. This causes them to change direction and this effect is (10) 6. the law of (10) 8. We cannot see radiation (5, 3) 9. the greater the the higher the pitch. (9) Down 2. light is the light we can see (7) 3. waves spread out to some extent into the area beyond the gap. This is called (11) 7. the greater the the louder the sound (9) 10. Transverse waves and (12, 5)
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