Across
- 3. effect the apparent change in the frequency of a wave (like sound or light) as the source
- 4. wave a type of wave in which the medium's vibration is parallel to the direction of the
- 8. The number of complete wave cycles that pass a fixed point in a given unit of time. It is usually measured in Hertz (Hz), where one Hertz equals one cycle per second.
- 10. by comparing it with a given level on a logarithmic scale.
- 11. The top of a wave. It is the point where the wave has the most energy, as the particles are spread farthest apart.
- 13. level measurement of the intensity or loudness of a sound. Larger amplitudes make the sound seem louder, while smaller amplitudes make it seem quieter.
- 15. a disturbance that transfers energy from one point to another within a medium,
- 17. The lowest point of the wave, the opposite of the crest. It is where the wave has the least amount of energy, as the particles are closest together at this point.
- 18. The quality of sound that helps us hear it as high or low depends on how fast the sound waves are moving. Faster waves make higher sounds, while slower waves make lower sounds.
- 20. waves Longitudinal waves that travel through air or water move by pushing and pulling the particles in the medium. These waves are what we hear as sound, with particles moving back and forth in the same direction as the wave.
Down
- 1. The maximum extent of a vibration or oscillation, measured from the position of equilibrium. When it's larger, the wave has more energy and is perceived as louder or stronger.
- 2. a unit used to measure the intensity of a sound or the power level of an electrical
- 5. intensity amount of energy flowing per unit time through a unit area that is perpendicular to the direction in which the sound waves are travelling.
- 6. the human perception of how intense a sound is Bigger waves make the sound seem stronger, while smaller waves make it seem weaker.
- 7. the wave moves relative to an observer, causing the waves to be compressed
- 9. The distance between two consecutive identical points on a wave . It can be measured from one crest to the next crest, or from one trough to the next trough.
- 12. and the medium's displacement is in the same direction as that of the wave
- 14. The rate at which work is done, meaning how much energy is transferred or converted per unit time. usually measured in watts, where one watt equals one joule of energy per second.
- 15. approaching and stretched when moving away, resulting in a perceived
- 16. actually transporting matter itself
- 19. in pitch or color depending on the direction of motion