Across
- 4. What is a common indicator of energy?
- 8. What is an indicator of energy you hear when someone plays a low note on a tuba?
- 9. What type of radiation has a lower frequency than visable light?
- 10. What is a way to increase electric light energty?
- 12. What is the number of crests in a wave that pass a point per unit time?
- 13. How many kinds of mechanical waves are there?
- 14. How do you hear sounds?
- 15. What type of material does sound travel through?
Down
- 1. What type of radiation has a higher frequency than visable light?
- 2. What is a wave that cause a medium to vibrate in a direction parallel to the direction in which a wave travels?
- 3. What is a wave that cause a medium to vibrate in a direction perpendicular to the direction in which the wave travels?
- 5. What is an indicator of energy you can see?
- 6. What is an indicator of energy that you hear when somone blows a whistle?
- 7. What type of radiation can you see on the EM spectrum
- 11. What is an simple way to increase light?