Study Guide – Unit 9 Waves
Test Date – Wednesday, March 29th
1. Draw the shape of a basic transverse wave and label the crest, trough, rest position,
wavelength and amplitude.
2. Draw the shape of a basic longitudinal wave that shows compressions and rarefactions.
3. How do you determine the frequency of a wave?
4. What unit is frequency measured?
5. If 8 wavelengths pass a fixed point over 2 seconds time what is the frequency?
6. What is the relationship between wavelength and frequency?
7. If the frequency of a wave increases by a factor of 5, what effects will this show on the
wavelength? (be specific as numbers are used)
8. What is reflection?
9. What does the law of reflection state?
10.What is refraction?
11.What are some examples where refraction occurs?
12.What causes the change in wave speed under refraction?
13.What is diffraction?
14.How is constructive interference different from destructive interference?
15.When do electromagnetic waves travel the fastest (what are they moving through)?
16.Through what matter do EM waves like light move the slowest?
17.What is the order of the electromagnetic spectrum from the longest wavelength to the
shortest?
18.Does sound require a medium?
19.Through what type of medium does sound travel the fastest?
20.What is the Doppler Effect?
21.What happens to the pitch (frequency) of an object approaching the observer under the
Doppler Effect?
22.What happens to the pitch (frequency) of an object that moves away from the observer
under the Doppler Effect?
Identify the wave behaviors below
23.__________________
25.________________
24. _________________
26.___________________ 27.__________________