Sound

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. Sound is caused by .
2. A sound wave consists of higher pressure called .
3. is a place of lower pressure in sound waves.
4. Wave speed in metres per second equals frequency in multiplied by in metres.
5. Sound cannot travel through .
6. The speed of sound in a solid is than the speed of sound in air.
7. When the frequency of sound is increased, the wavelength .
8. An is simply a reflected sound.
9. Pitch of sound depends on .
10. Loudness of sound depends on .