Waves

3. - A region in a longitudinal wave where particles are spread apart.
6. - A material through which a wave travels.
7. - A repeating disturbance that transfers energy through a medium or space.
9. - The decrease in wave amplitude as energy is lost.
10. - The time it takes for one full cycle of a wave to pass a given point.
13. - The height of a wave, which determines its energy.
15. - A wave in which particles move parallel to the direction of the wave (e.g., sound).
16. - The combination of two or more waves into a single wave.
17. - The measure of how high or low a sound is, determined by frequency.
18. - The number of wave cycles that pass a point in one second.
20. - A region in a longitudinal wave where particles are closer together.

1. - Electromagnetic waves that transfer energy without requiring a medium, such as light.
2. The type of wave that moves perpendicular to the direction of energy transfer (e.g., light).
4. The bending of waves when they pass from one medium to another.
5. - The phenomenon where waves spread out after passing through a narrow opening.
8. - The distance between two consecutive crests or compressions in a wave.
11. - The phenomenon where a wave changes frequency when the source or observer is in motion.
12. - A phenomenon where waves bounce back after hitting a surface.
14. - The formula for calculating wave speed is frequency times ________.
19. - A type of wave caused by vibrations that travels through a medium, such as air or water.