Across
- 2. Interference: The interaction of two or more waves overlapping in a medium.
- 6. Sound waves with frequencies above human hearing (above 20,000 Hz).
- 7. Speeds exceeding Mach 5, much faster than the speed of sound.
- 9. A region in a longitudinal wave where particles are closest together.
- 11. A region in a longitudinal wave where particles are spread apart.
- 13. Sound waves with frequencies below human hearing (below 20 Hz).
- 15. Whole number multiples of a fundamental frequency in a vibrating system.
- 17. Interference: When waves combine to reduce or cancel out their amplitudes.
- 18. A unit measuring the intensity of sound on a logarithmic scale.
- 19. The perceived frequency of a sound, determining how high or low it is.
- 20. A point in a standing wave where there is no movement.
- 21. The ratio of an object's speed to the speed of sound in a given medium.
Down
- 1. Frequency: The frequency at which an object naturally vibrates when disturbed.
- 3. Effect: The change in frequency or pitch of a wave due to the motion of the source or observer.
- 4. Wave: A wave pattern that appears stationary due to the interference of two opposite-traveling waves.
- 5. Superposition: The principle that the total displacement at any point is the sum of individual wave displacements.
- 8. Interference: When waves combine to create a wave with greater amplitude.
- 10. The amplification of vibrations when an object is exposed to its natural frequency.
- 12. A point in a standing wave with maximum displacement.
- 14. Vibration: When an object is made to vibrate by an external force at a specific frequency.
- 16. A periodic variation in sound intensity caused by the interference of two sound waves with slightly different frequencies.