Flashcards
ALL ABOUT SOUND
Cards in this deck (19)
- 1WHAT IS SOUNDvibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.
- 2what is compressionthe action of compressing or being compressed
- 3what is a sound wavea wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air.
- 4what does rarefactions meanreduction in the density of something, especially air or a gas.
- 5this is a common diagram of soundwaves in our everyday one
- 6what is a longitude waveare waves in which the displacement of the medium is in the same direction as, or the opposite direction to, the direction of travel of the wave.
- 7what is a vibrating speaker
- 8how fast is the speed of sound1.079e+9 km/h
THAT'S LIKE..
- 9types of wavesLongitudinal wave *s - Movement of the particles are parallel to the motion of the energy. Sound waves moving through the air is an example of this type of wave. Transverse wave *s - movement of the particles are at right angles (perpendicular) to the motion of the energy.
- 10where does sound go?they can usually goo up into the hemisphere
- 11Did you know that a fighter jet travels at about the speed of soundWOW!!!!!!!
- 12these are different materials will give a room different reverberation timesin an unfurnished room
in a furnished room, sound is absorbed by soft like heavy curtains, cushions and floor covering
- 13what is an infrared sound?Infrasound, sometimes referred to as low-frequency sound, is sound that is lower in frequency than 20 Hz
- 14frequency and pitch of soundA high pitch sound corresponds to a high frequency sound wave and a low pitch sound corresponds to a low frequency sound wave. Amazingly, many people, especially those who have been musically trained, are capable of detecting a difference in frequency between two separate sounds that is as little as 2 Hz.
- 15musical instrumentsAll musical instruments produce sound by vibration,
they all produce ways and produce sounds of different characteristic qualities
- 16How do we then hear all these vibrations?well, your ears collect soundwaves, amplify there vibrations and convert them into electrical impulses.
- 17these are some musical instruments notes that were viewed on the (CRO)guitars make oboe noises
and
pionos make laud obstacular noises
- 18what is a cro?a cro converts sound waves into electrical signals that can be viewed on a screen
- 19this is a typical sound absorption values
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- Flashcards on ALL ABOUT SOUND, created by Asaaad Dawood on 01/08/2016.
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- Asaaad Dawood
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