Concept Items
13.1 Types of Waves
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No, water waves transfer only energy from one place to another.
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Yes, water waves transfer water from one place to another.
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the lowermost position of a wave
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the uppermost position of a wave
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the final position of a wave
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the initial position of the wave
Give an example of longitudinal waves.
- light waves
- water waves in a lake
- sound waves in air
- seismic waves in Earth’s surface
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the properties of the material through which it travels
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the shape of the material through which it travels
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the size of the material through which it travels
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the color of the material through which it travels
13.2 Wave Properties: Speed, Amplitude, Frequency, and Period
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The amplitude of a transverse wave is measured along the direction of propagation.
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The amplitude and the wavelength of a transverse wave are measured along the direction of propagation.
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The wavelength of a transverse wave is measured along the direction of propagation.
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The displacement of the particles of the medium in a transverse wave is measured along the direction of propagation.
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compressional waves
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P-waves
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longitudinal waves
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S-waves
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the time that a wave takes to complete a half cycle
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the time that a wave takes to complete one cycle
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the time that a wave takes to complete two cycles
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the time that a wave takes to complete four cycles
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Its frequency decreases.
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Its frequency increases.
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Its frequency remains the same.
13.3 Wave Interaction: Superposition and Interference
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True
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False
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Sound is louder in parts of the room where the density is greatest. Sound is softer in parts of the room where density is smallest.
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Sound is louder in parts of the room where the density is smallest. Sound is softer in parts of the room where density is greatest.
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Sound is louder in parts of the room where constructive interference occurs and softer in parts where destructive interference occurs.
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Sound is louder in parts of the room where destructive interference occurs and softer in parts where constructive interference occurs.
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The frequency depends on the propagation speed and the density of the string.
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The frequency depends on the propagation speed and the length of the string.
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The frequency depends on the density and the length of the string.
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The frequency depends on the propagation speed, the density, and the length of the string.
Is the following statement true or false? Refraction is useful in fiber optic cables for transmitting signals.
- False
- True
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Refraction is the phenomenon in which waves change their path of propagation at the interface of two media with different densities.
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Refraction is the phenomenon in which waves change their path of propagation at the interface of two media with the same density.
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Refraction is the phenomenon in which waves become non-periodic at the boundary of two media with different densities.
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Refraction is the phenomenon in which waves become non-periodic at the boundary of two media with the same density.