Name:____________________
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PW 4 - Wave Interference and Standing Waves - Assignment
This assignment covers sections PW 3 and PW 4.
1. A wave has a length of 30.0 cm and a velocity of 2.5 cm/s. If it has a
velocity of 3.70 cm/s when it enters a new medium, what is the
wavelength?
2. A wave is 2.30 m long before transmission. After transmission, it is
travelling at 5.26 m/s with a wavelength of 1.75 m. What is the velocity
of the wave before transmission?
3. A transmitted wave with a length of 2.00 m can travel 75.0 m in 30.0 s. If
the wave was travelling at 3.00 m/s in the initial medium, what was the
wavelength?
4. On the blank medium, draw the reflected pulses and the transmitted
pulse when the initial pulse gets to point A.
Name:____________________
5. A rope that is 1.50 m long exhibits a standing wave pattern with 6 nodes.
If the frequency of the waves is 75.0 Hz, what is the velocity of the waves?
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6. Draw the ‘during’ and ‘after’ snap shots for the following interference
patterns.
a)
b)
c)
7. The following is an interference pattern when the middle of two waves
meet. Draw a ‘before’ picture. Note that there are several solutions.