Sound waves
Sound waves are mechanical vibrations that propagate through a medium such as air, water, or solid materials, creating an audible phenomenon that can be heard when they reach a human or animal ear. Characterized by their frequency, amplitude, and wavelength, these waves are fundamental to the transmission of sound, enabling communication, music, and various auditory experiences. The study of sound waves intersects physics and engineering, leading to innovations in acoustics, audio technology, and noise control, making them a pivotal aspect of both the natural environment and human-made systems.
Questions
- What type of wave is sound?
- Why do sound waves need a medium?
- How does sonar work?
- How do sound waves travel through solids?
- A plane sound wave in air at 20°C, with wavelength 0.645 m, is incident on a smooth surface of water at 25°C, at an angle of incidence of 3.65°. How do you determine the angle of refraction for the sound wave and the wavelength of the sound in water?
- What is the difference between note and tone of a sound?
- Which of these frequencies is resonant with that of an ideal #"256 Hz"# tuning fork?
- Sound does not travel in space. ('In space, no-one can hear you scream', as the tag line for 'Alien' went...) What would happen to the sound energy if, say, an astronaut decided to play a guitar during a space-walk?
- Why are sound waves in air characterized as longitudinal?
- In a large ripple tank, a wave producing machine working at a frequency of 30 Hz produces 25 complete waves in a distance of 0.5 m. What would be the velocity of an individual wave? Thanks!
- Why does consonance have a higher quality of sound (timbre) than dissonance?
- How do sound waves travel by refraction?
- Astudent hears a police siren. What would change the frequency that the student hears?
- Two tuning forks are played at the same time. One has a frequency of 176 Hz and the other is 178 Hz. How many beats per second are heard?
- What are the properties of sound waves?
- An earthquake originating in Edmonton, Alberta, Canada produces a wave that has a period of 0.23 seconds and a wavelength of 57 m. ?
- When a sound source approaches you, how does the pitch change?
- Sound travel from air to water. the velocity of sound waves in air is 332m/s and wavelength is 2m. if the wavelength of sound in water is 850cm, find its velocity in water?
- A sound wave has a frequency of 245 Hz and a wavelength of 1.0 m. What is the speed of the sound wave in air?
- What sound waves can humans hear?