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1. If a boat is traveling over a wave with amplitude of 6 m, how far does it fall when moves from crest to trough?

   1.   ?    12 m
   2.   ?    6 m
   3.   ?    18 m
   4.   ?    0 m

2. Which of the following accurately describes a wavelength?

   1.   ?    From crest to crest.
   2.   ?    From crest to trough.
   3.   ?    From equilibrium to amplitude.
   4.   ?    From equilibrium to crest.

3. If a water wave stops vibrating and comes to rest, the water will settle at the level of

   1.   ?    equilibrium.
   2.   ?    the crest.
   3.   ?    the trough.
   4.   ?    the amplitude.

4. A bored swimmer on an air mattress begins counting wave crests that pass underneath her air mattress. If she counts 4 crests, how many wavelengths passed underneath while she was counting?

   1.   ?    3 wavelengths
   2.   ?    4 wavelengths
   3.   ?    2 wavelengths
   4.   ?    5 wavelengths

5. The unit of wavelength is

   1.   ?    metres.
   2.   ?    newtons.
   3.   ?    wavelengths.
   4.   ?    hertz.

6. A swimmer on an inner tube bobs over waves in the water after a large ship passes by. If 2 seconds elapse between each bob of the swimmer upward, what is the frequency of the water waves?

   1.   ?    0.5 Hz
   2.   ?    1 Hz
   3.   ?    2 Hz
   4.   ?    1.5 Hz

7. Matter moves back and forth perpendicular to the direction that the waves travels in a

   1.   ?    transverse wave.
   2.   ?    compression wave.
   3.   ?    seismic wave.
   4.   ?    water wave.

8. Which of the following statements about water waves is most correct?

   1.   ?    Only the energy carried by the water moves forward.
   2.   ?    Only the crest of the wave moves forward.
   3.   ?    Only the trough of the wave moves forward.
   4.   ?    The water actually moves backward as a water wave moves forward.

9. Which one of the following statements regarding the amount of energy carried by a wave is correct?

   1.   ?    A higher amplitude wave carries more energy.
   2.   ?    A lower amplitude wave carries more energy.
   3.   ?    A wave carrying more energy always has a greater frequency.
   4.   ?    A wave carrying more energy always has a lower frequency.

10. Assuming that the speed of a wave stays the same, what must happen for the frequency of the wave to increase?

    1.   ?    The wavelength must decrease.
    2.   ?    The wavelength must increase.
    3.   ?    The amplitude must increase.
    4.   ?    The amplitude must decrease.