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16.1.2. Net Pressure Force
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4 cards from this lesson. Good the night before a test.
Try these first
- 1.
Define viscosity.
Hint
Think about how thick or thin a fluid is.
- 2.
What is the use of Reynolds number?
Hint
It's a dimensionless number!
- 3.
What does a high Reynolds number indicate?
- Turbulent flow
- Laminar flow
- No flow
Hint
Think high-speed flows!
- 4.
Is dynamic similarity important in modeling fluid flows?
- True
- False
Hint
Would models represent real-life behavior?
- 5.
A model of a car tested in a wind tunnel has a drag force of 200 N. If the scale ratio is 1:10, what would be the drag force on the full-scale car?
Hint
Understand the effect of area in drag calculations.
- 6.
Calculate the power required to overcome drag if the drag force is 150 N and the car's velocity is 30 m/s.
Hint
Power is the product of force and velocity!
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
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Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting