Across
- 1. Matter that waves can travel through
- 4. When energy bounces off a object or material
- 7. When energy is transferred into the object
- 9. A wave that moves perpendicular to the vibrations of the particles
- 10. A transverse, electromagnetic wave
- 11. As energy goes through a new material
- 12. What is change in a sound wave by changing the frequency
Down
- 2. A wave that travels through empty space
- 3. A longitudinal, mechanical wave
- 5. A wave that moves parallel to the vibrations of the particles
- 6. When the energy is bent as it enters a new material
- 8. A wave that travels through a medium