waves 0.0 / 5HideShow resource informationPhysicsWavesGCSEAQACreated by: kate167Created on: 02-05-14 19:37 26739541108 Across 1. The spectrum (15) 6. sea (5) 8. When an object or substance vibrates, it produces (5) 9. HZ (9) 10. the greater the the louder the sound (9) Down 2. the law of (10) 3. light is the light we can see (7) 4. measures to top to the middle (10) 5. are used to transmit television and radio programmes (5, 5) 7. 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)
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