Sound and Light ch. 2-2
7th Grade Science
Terms in this set (11)
the maximum distance that the particles of a wave's medium vibrate from their rest position....height
the distance from any point on a wave to an identical point on the next wave... crest to crest or trough to trough
How does shaking a rope at different rates affect the wavelength of the wave that moves through the rope?
shaking the rope faster makes the wavelength shorter
shaking the rope slower makes the wavelength longer
the number of waves produced in a given amount of time... rate
the speed at which a wave travels through a medium
wave speed calculated (wave equation
(v)=A x f
wave speed (lambda or wave length) (frequency)
Which of the following results in more energy in a wave?
a. a smaller wavelength
b. a lower frequency
c. a shallower amplitude
d. a lower speed
a smaller wavelength
What is the speed of a wave that has a wavelength of 2 m and a frequency of 6 Hz
V=WL x F= 2 m x 6 Hz=12 m/s
What is frequency measured in?
A wave has a low speed but a high frequency. What can you infer about its wavelength?
Its wavelength must be short.
If you make 3 rope waves per second, what is the frequency of the wave?
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