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Related Flashcards
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Cards In This Set
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What factors effect the speed of sound?
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Temperature and medium
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What does the loudness of a sound depend on?
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Contained energy and intensity
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What is the difference between a high pitch and a low pitch?
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High pitch- high frequency, low pitch- low frequency
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How do all musical instruments produce sound?
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Standing waves
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Understand the role of harmonics in a musical instrument.
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Every instrument has a characteristic sound quality from harmonics
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What is resonance? How do musical instruments use resonance?
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An effect in which the vibration of one object causes the vibration of of another object at natural frequency
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How does sound move through the ear?
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After sound waves strike the eardrum, the eardrum vibrates, hammer, anvil, and stirrup, stirrup strikes a membrane at the opening of the cochlea, nerve fibers stimulated, brain interprets as impulse.
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What is sonar and how is it used?
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A system that uses reflected sound waves to determine the distance to/location of the object(s)
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How can ultrasound be used to determine distances or create sonograms?
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By measuring the time it takes for sound waves to be reflected back from a surface
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What is a photon?
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Packet of energy
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How can light be modeled? what can these models explain?
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Particles or waves, particles- light knocking electrons off a plate without a medium, wave- reflection, refraction
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What is the relationship between the enrgy of light and frequency?
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Proprotional
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How does a medium effect the speed of light?
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Travels slower through a medium
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Describe the different parts of the electromagnetic spectrum.
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Invisible light (UV)
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What is radar?
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A system that uses reflected radio waves to determine the location of objects
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