Waves 0.0 / 5 ? PhysicsWavesGCSEAll boards Created by: nancehulliusCreated on: 29-09-13 19:49 92573411086 Across 1. What piece of equipment can be used to show reflection, refraction, interference and diffraction? (10) 6. What kind of wave has the direction of energy travel parallel to the movement of the wave? (12) 7. How does sound travel? (9) 8. What unit is frequency measured in? (5) Down 2. What turns electrical signals into sound waves? (10) 3. The image seen on a cinema screen is a .................. (9) 4. What do you call a space with no particles? (6) 5. When waves spread out due to passing through a gap or around the edge of an obstacle it is called .......... (11) 9. What is a reflection of sound? (4) 10. Visible light is the portion of the electromagnetic ........... which can be seen by us. (8)
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