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22 Cards in this Set
- Front
- Back
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What is one wavelength? |
One oscillation/cycle in a wave. |
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What is the term for how tall a wave is? |
Amplitude |
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What is the term for one complete oscillation of 1 cycle? |
Time period (T) |
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What is the formula for frequency? What is the unit? |
f = 1/T where 1 is the number of oscillations. the unit is Hertz |
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Will water be dragged along with a wave? |
No, it will merely flow. |
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What is the formula for speed of a wave? |
Speed of wave = frequency * wavelength V = fλ |
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Longitudinal and transverse are two types of what? What are they based on? |
They are waves based on how the wave propogates through in the medium. |
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What is the unit of measurement for wavelengths? |
m/s |
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Which type of wave is when the medium moves up and down as the wave passes by? What are some examples? |
Transverse waves. Examples include water, light, and instrument |
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Which type of wave is when the medium gets compressed and relaxed as the wave passes by? What are some examples? |
Longitudinal wave. Examples include sound, wave on a slinky. |
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What kind of waves occur when a wave reflects back on itself? |
Standing waves. |
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What is it called when a standing wave intersects with the medium? |
A node |
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What is it called when a crest of a standing wave is met? |
An anti node. |
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How many waves is the first harmonic? What is the formula? What is the letter for the first harmonic? |
1/2 wave L = λ/2 f |
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What is the fundamental frequency? |
The first harmonic. |
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How many waves is the second harmonic. What is the formula for the second harmonic. What is the letter for the second harmonic? |
It is one wave L = λ. 2f |
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How many waves is the third harmonic? What is the formula for the third harmonic? What is the letter for the third harmonic? |
L = 1.5λ or (3/2)λ 3f |
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Do wavelength and frequency work inversely towards each other? |
Yes, higher wavelength means lower frequency and vice versa |
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Suppose that water waves coming into a dock have a velocity of 1.2 m/s and a wavelength of 2.4m. With what frequency do these waves meet the dock? |
.05 f=V/λ |
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Suppose that water waves have a wavelength of 4.1 m and a period of 2.3 s. What is the velocity of these waves? |
f = 1/2.3 (f=1/T) V=fλ |
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The length of two wavelengths is 8 m. a) what is the wavelength of the wave? b) if the frequency is 3Hz, what is the wave speed? |
a) 8 = 2λ, 4 = λ b) V = fλ, V = 3*4 |
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A string with a length of 0.8 m is fixed at both ends. a. What is the longest possible wavelength for the traveling waves that can interfere to form a standing wave on this string? b. If waves travel at the speed of 120 meters per second on this string what is a frequency associated with this longest wavelength? |
A. The first harmonic is the longest, so L = λ/2 .8 * 2 = 1.6 m B. V=fλ 120m/s = 1.6 m * f, f = 75Hz |
