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Name _______________________________________________ Date ________________ Class______________
DIRECTED READING WORKSHEETS 53
15. How does a fish’s swim bladder cause the fish to move like asubmarine?
Review (p. 172)
Now that you’ve finished Section 2, review what you learned byanswering the Review questions in your ScienceLog.
Section 3: Bernoulli’s Principle (p. 173)
1. What happens to your shower curtain when you increase thewater pressure in your shower?
Fluid Pressure Decreases as Speed Increases (p. 173)
2. What did Bernoulli say about the speed of a moving fluid?
a. The faster the speed, the higher the pressure.b. The slower the speed, the lower the pressure.c. The faster the speed, the lower the pressure.d. The slower the speed, the higher the pressure.
3. The table-tennis ball in Figure 14 stays in the water stream. Why?
It’s a Bird! It’s a Plane! It’s Bernoulli’s Principle! (p. 174)
4. Look at Figure 15. The shape of an airplane wing causes the air
above the wing to flow than theair below it. (slower or faster)
5. The upward force acting on an airplane wing due to air flow is
Name _______________________________________________ Date ________________ Class______________
DIRECTED READING WORKSHEETS 53
15. How does a fish’s swim bladder cause the fish to move like asubmarine?
As the swim bladder fills with gases, the fish’s overall density decreases
and the fish rises. As the swim bladder empties of gases, the fish’s overall
density increases and the fish sinks.
Review (p. 172)
Now that you’ve finished Section 2, review what you learned byanswering the Review questions in your ScienceLog.
Section 3: Bernoulli’s Principle (p. 173)
1. What happens to your shower curtain when you increase thewater pressure in your shower?
The curtain swirls around my legs.
Fluid Pressure Decreases as Speed Increases (p. 173)
2. What did Bernoulli say about the speed of a moving fluid?
a. The faster the speed, the higher the pressure.b. The slower the speed, the lower the pressure.c. The faster the speed, the lower the pressure.d. The slower the speed, the higher the pressure.
3. The table-tennis ball in Figure 14 stays in the water stream. Why?
The air, which has a higher pressure, pushes the ball into the water
stream, which has a lower pressure.
It’s a Bird! It’s a Plane! It’s Bernoulli’s Principle! (p. 174)
4. Look at Figure 15. The shape of an airplane wing causes the air
above the wing to flow than theair below it. (slower or faster)
5. The upward force acting on an airplane wing due to air flow is