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- 1. Multiple Choice
The total time for sound waves to return to a ship was 8 seconds after being released. What is the depth in meters?
Distance (Depth) = Velocity x (Total time/2)
Velocity of sound in water = 1500 m/s
12,000m
6000m
375m
187.5m
- 2. Multiple Choice
The total time for sound waves to return to a ship was 4.5 seconds after being released. What is the depth in meters?
Distance (Depth) = Velocity x (Total time/2)
Velocity of sound in water = 1500 m/s
6750m
333.33m
667m
3375m
- 3. Multiple Choice
If the depth of the ocean floor is 9000 meters, how long, in total time, does it take sound waves to return to the SONAR detector?
Distance (Depth) = Velocity x (Total time/2)
Velocity of sound in water = 1500 m/s
13,500,000sec
12sec
0.17sec
3sec
- 4. Multiple Choice
If the depth of the ocean floor is 12000 meters, how long, in total time, does it take sound waves to return to the SONAR detector?
Distance (Depth) = Velocity x (Total time/2)
Velocity of sound in water = 1500 m/s
16sec
8sec
18,000,000sec
36,000,000sec
- 5. Multiple Choice
The time for sound waves to return to a ship from just the bottom of the ocean was 1.25 seconds. What is the depth in meters?
Distance (Depth) = Velocity x (Total time/2)
Velocity of sound in water = 1500 m/s
937.5m
1875m
10050m
1200m
- 6. Multiple Choice
If the depth of the ocean floor is 7500 meters, how long does it take sound waves to reach the bottom of the ocean?
Distance (Depth) = Velocity x (Total time/2)
Velocity of sound in water = 1500 m/s
10sec
5sec
11,250,000sec
0.2sec
- 7. Multiple Choice
The speed of sound varies when the medium it passes through changes. For example, the speed of sound through air is 343 m/s. A boat mapping the seafloor near Greenland determines after a 12-second ping, the depth is 8100 meters. What is the speed of sound in this cold, icy water?
Distance (Depth) = Velocity x (Total time/2)
1875m/s
48,600m/s
675m/s
1350m/s
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