Fichas
Module 4.2 Sound
Fichas del conjunto (20)
- 1How is sound produced?Sound is produced when something vibrates, moving back and forth very quickly.
- 2What is compressions?A region of high pressure in which particles are close together.
- 3What is rarefactions?A region low pressure in which particles are far apart.
- 4What is a soundwave?Regions of high and low pressure orginating from a vibrating object and transmitted through a medium.
- 5What is a wavelength?The distance from one peak of a wave to the next.
- 6What is a transverse wave?A wave in which the vibration is at right angles to the direction the wave is travelling.
- 7What is a longitutudal wave?A wave in which the vibration is in the same direction as the wave is travelling.
- 8How is sound transmitted?Sound energy is transmitted through a material as longitutudal waves.
- 9What is a frequency?The number of waves passing a point every second.
- 10What is reverberation?length of time a sound can be heard.
- 11What is an echo?a sound that is reflected and heard a second at time.
- 12What is the doppler effect?An increase or decrease in the frequency of sound, light, or other waves as the source and observer move towards, or away from each other.
- 13What is a wave?A wave is a disturbance that transfers energy through matter or space,
- 14What is a sonar?Sonar is a technique that uses sound propagation to navigate, communicate with or detect objects on or under the surface of the water
- 15What is a ultrasound?sound or other vibrations having an ultrasonic frequency.
- 16What is a infrasound?Frequencies that are lower than our own hearing range
- 17What is frequency measured in?Hertz.
- 18Explain why an empty room is full of echoes.An emty room is full of echoes because in unfurnished rooms sound reflects.
- 19What is a sonic boom?A sonic boom is a sound associated with shock waves.
- 20What is the speed of sound at 18 degrees celsius?342 m/s
Información
- Descripción
- Fichas sobre Module 4.2 Sound, creado por Addna Dahir el 23/07/2018.
- Creado por
- Addna Dahir · jul 2018
- Actualizado
- 24 jul 2018
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- 3
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