Use the table to answer the question.
Wave Wavelength (meters) Frequency (hertz)
W 5 200
X 3 300
The table shows information about two waves. Based on the given information, which conclusion can be made?
Responses
Wave X has a faster speed.
Wave X has a faster speed. - no response given
Wave W has a faster speed.
Wave W has a faster speed. - no response given
Wave W has a greater amplitude.
Wave W has a greater amplitude. - no response given
Wave X has a greater amplitude.
Wave X has a greater amplitude. - no response given
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Based on the given information, no conclusion can be made about the speed or amplitude of the waves. The table only provides information about the wavelength and frequency of the waves.
What's the right answer
Based on the given information, the correct conclusion is: Wave X has a faster speed. This can be determined by comparing the wavelengths of the two waves. Wave X has a shorter wavelength (3 meters) compared to Wave W (5 meters), which indicates that it is traveling at a faster speed.
So wave x has a faster speed
Yes, based on the given information, Wave X has a faster speed compared to Wave W.
A room with which type of surface will most likely produce an echo?
Responses
glass
glass - no response given
dirt
dirt - no response given
carpet
carpet - no response given
foam
A room with a hard, reflective surface like glass is more likely to produce an echo.
A builder wants to make a room soundproof in a new home. The builder should use materials that _____.
Responses
reflect sound waves and create echoes
reflect sound waves and create echoes - no response given
reflect sound waves and prevent echoes
reflect sound waves and prevent echoes - no response given
absorb sound waves and create echoes
absorb sound waves and create echoes - no response given
absorb sound waves and prevent echoes
The builder should use materials that absorb sound waves and prevent echoes.
The formula vw=f⋅λ
describes the relationship between the speed of a wave (vw
), and its frequency (f
) and wavelength (λ
).
For example, if a wave has a frequency of 120 Hz and a wavelength of 5m, it would have a speed of 600 m/s.
In one or two sentences, describe what would happen to the frequency of this wave if the wavelength is increased to 10m but the speed stays the same at 600 m/s.