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Questions and Answers
Match the speed of sound with the correct medium:
Match the speed of sound with the correct medium:
Air = 330 m/sec Water = 1480 m/sec Muscle = 1580 m/sec Bone = 4080 m/sec
Match the term with its definition:
Match the term with its definition:
Compression = A local increase in pressure Rarefaction = A local decrease in pressure Frequency = The number of compressions or rarefactions per unit time Wavelength = The distance between successive compressions and rarefactions
Match the medium with the relative speed at which sound travels through it:
Match the medium with the relative speed at which sound travels through it:
Solid = Fastest Liquid = Relatively slower Gas = Slowest Elastic material medium = Sound propagates through
Match the variable with its corresponding representation in the speed of sound formula $v_s = f\lambda$:
Match the variable with its corresponding representation in the speed of sound formula $v_s = f\lambda$:
Match the description with the correct concept:
Match the description with the correct concept:
Match the mathematical representation with its concept:
Match the mathematical representation with its concept:
Match the phenomenon with its appropriate description:
Match the phenomenon with its appropriate description:
Match the type of wave with its characteristics:
Match the type of wave with its characteristics:
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Study Notes
General Properties of Sound
- A sound wave is a pattern of disturbance caused by energy traveling away from the source of the sound, transferring energy without transferring matter.
- Sound is a mechanical disturbance that propagates through an elastic material medium with a definite velocity, causing a local increase (compression) or decrease (rarefaction) of pressure relative to atmospheric pressure.
Characteristics of Sound Waves
- Sound is a vibration that propagates through a medium in the form of a mechanical wave, which can be through a solid, liquid, or gas.
- The speed of sound varies in different media, with the fastest speed in solids, relatively slower in liquids, and slowest in gases.
Speed of Sound in Different Media
- Air: 330 m/sec
- Water: 1480 m/sec
- Muscle: 1580 m/sec
- Bone: 4080 m/sec
Speed and Wavelength of Sound
- The speed of sound is given by the formula: $$v_s = f\lambda$$
- Where f is the frequency and λ is the wavelength of the sound waves.
Frequency of Sound Waves
- The number of rarefactions and compressions per unit time is the frequency of a sound wave.
- Frequency is mathematically represented as: $$f = 1/T$$
Wavelength of Sound Waves
- The distance between successive compressions and rarefactions is the wavelength of a sound wave.
- Wavelength is mathematically represented as: $$\lambda = c/f$$
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