Physics P7 Key Words 0.0 / 5 ? PhysicsP7 topicGCSEOCR Created by: lucyolliver_Created on: 29-12-14 18:32 93867124105 Across 1. The spreading out of a wave as it passes an obstacle and expands into the region beyond the obstacle (11) 4. The apparent path the Sun traces out along the sky (8) 5. The distance that light travels in one year (5, 4) 8. The 'hiding' of one heavenly body behind another (7) 9. The distance between the focal point and the lens (5, 6) 10. A collection of galaxies (8) Down 2. A push or pull acting upon an object (5) 3. A star that has a changing luminosity (7, 8) 6. The change in direction and speed of a wave as it passes from one medium to another (10) 7. The time it takes the Earth to rotate 360 degrees (8, 3)
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