Sound 0.0 / 5 ? BiologyScienceYears 7-9 (KS3)All boards Created by: Josephine.caron.26Created on: 15-04-20 02:12 986231475 Across 1. You can use this to make sound louder (9) 4. It passes vibrations on to liquid in which part? (7) 5. What produces a sound wave? (9) Down 2. What are frequencies above 20,000 Hz called? (10) 3. You measure sound intensity in? (8) 6. What are frequencies below 20 Hz called? (10) 7. What is frequency measured in? (5) 8. A wave is an that transfers energy or information (11) 9. lots of echos join together this can produce a longer sound (13)
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