We have 3.25 waves and total time of 1s.
T = 1s/3.25 = (1/3.25)s
f = 1/T = 1/(1/3.25)s = 3.25s-1(1Hz/1s-1) = 3.25Hz.
The amplitude of a soundwave can be expressed as a sin wave. Which of the following is an accurate description?
A. A positive amplitude means the sound pressure level is higher
B. A negative amplitude represents a rarefication of the baseline sound pressure in the air
C. If the length of time expressed in the graph were 1 second, the frequency of the soundwave would be between 3 Hz and 3.5 Hz
D. If the length of time expressed in the graph were 1 second, the frequency of the soundwave would be between 6 Hz and 7 Hz
E. the sound is a pure tone
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Sound Waves concept. You can view video lessons to learn Sound Waves. Or if you need more Sound Waves practice, you can also practice Sound Waves practice problems.