Crossword 3.0 / 5 based on 1 rating ? PhysicsWavesGCSEAQA Created by: lily8167Created on: 25-09-13 17:09 32617485 Across 1. The number of crests passing a fixed point every second. (9) 4. How high or low a sound is. (5) 5. How does sound travel? (5) Down 2. What is it called when waves spread when they pass through a gap or move past an obsticle? (11) 3. The wave that moves parrallel to the energy source. (12) 6. An empty area with NO air particles. (6) 7. A band of seven colors obtained after white light is split. (8) 8. The measurment frequency is measured in. (5)
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