Question 1(Multiple Choice Worth 2 points)
(03.03 MC)What happens when a sound wave moves from water to air?
It slows down.
It speeds up.
It stays the same.
It reverses.
Question 2(Multiple Choice Worth 2 points)
(03.03 HC)A severe storm has churned up the water and sediment along a coastline, causing the water to appear cloudy. How would this most likely affect the marine ecosystem?
Light waves would be more likely to be refracted or diffracted, thus failing to reach plants and phytoplankton.
Light waves would be more likely to be at a higher frequency, thus causing harmful algal blooms.
Light waves would increase in wavelength, thus penetrating the water more deeply.
Light waves would be more likely to move at a higher speed through the water, thus helping to increase photosynthesis in producers.
Question 3(Multiple Choice Worth 2 points)
(03.03 LC)Which type of wave requires a medium in which to travel?
Heat
Electromagnetic
Light
Mechanical
Question 4(Multiple Choice Worth 2 points)
(03.03 MC)Hydrophones help scientists listen to and record sounds from the ocean. Which statement best describes how ocean water affects sound waves?
Cold water increases the speed of sound.
Warm water decreases the speed of sound.
Low water pressure increases the speed of sound.
High water pressure increases the speed of sound.
Question 5(Multiple Choice Worth 2 points)
(03.03 LC)Which of the following wave properties is the best way for surfers to judge how fast waves are coming in to shore?
Amplitude
Frequency
Equilibrium
Trough
Question 6(Multiple Choice Worth 2 points)
(03.03 MC)When two mechanical waves have a displacement in opposite directions, and they overlap, what will the resulting wave look like and why?
The new wave will have the same displacement as the original waves due to constructive interference.
The new wave will have a smaller displacement than either of the original waves due to destructive interference.
The new wave will have a greater displacement than either of the original waves due to constructive interference.
The new wave will have the same displacement as the original waves due to destructive interference.
Question 7(Multiple Choice Worth 2 points)
(03.03 LC)On the following diagram, what part of a wave is shown by letter B?
The diagram shows the parts of a water wave. Label A shows the high point of the wave. Label B shows the distance between two high points of a wave. Label C shows the low point of a wave.
Crest
Trough
Frequency
Wavelength