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Sound and noise
EduBook Organización
- 1813 visitas
What is sound? Sound is produced by vibrating objects. We perceive sound because we use our sense of hearing. When an object produces a sound, it travels through the air or other objects (walls,…
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Calculate. Sound (2)
EduBook Organización
- 1775 visitas
How far does sound travel in 10 s in an atmosphere of CO2 (v = 260 m/s)? It travels meters.
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Calculate. Sound (1)
EduBook Organización
- 1744 visitas
If we see lightning and then hear thunder 5 s later, how far away from us is the storm? It is meters away.
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Answer. Sound and noise
EduBook Organización
- 1762 visitas
How is sound produced? Name the three properties of sound. What is an echo? What is noise pollution?
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Observe. Reflection of sound
EduBook Organización
- 1735 visitas
John did this sound experiment at home. He wanted to find out whether objects reflect sound: What is the source of the sound? What does the sound travel through? What material does John use to reflect…
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Match. Properties of sound
EduBook Organización
- 1687 visitas
Match these types of sounds with the correct property of sound: A loud sound A low pitched sound A soft sound A high pitched sound Who or what produces the sound
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The intensity of sound
EduBook Organización
- 1315 visitas
The intensity of sound is measured in decibels (dB). A 10-decibel sound is almost impossible to hear, while a 120-decibel sound is so intense that it hurts our ears.
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Reflection of Sound
V&V Books Vicens Vives Organización
- 1028 visitas
Learn about how the reflection of sound causes echoes and reverberation.
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Image and sound association
Cristina Seco Organización
- 1 lo usan
- 434 visitas
Images are accompanied by sounds that are not associated with the image.
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Sound Portraits Productions
Vanessa Maestro Docente
- 1 lo usan
- 462 visitas
David Isay's award-winning radio documentaries on America's ghettos, prisons, and other neglected communities, as featured on NPR.
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