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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is drag?
💡 Hint: Think about what happens when you try to move through water.
Question 2
Easy
Define lift.
💡 Hint: What helps airplanes rise into the air?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the primary force opposing motion in fluid mechanics?
- Lift
- Drag
- Thrust
💡 Hint: It's the opposite of thrust.
Question 2
True or False: Lift acts parallel to the direction of motion.
- True
- False
💡 Hint: Think about how wings work.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A rectangular box with a width of 1 m, length of 0.5 m, and height of 0.8 m is moving through air at 10 m/s. Calculate the drag force if the drag coefficient is 2. Airstream density is 1.225 kg/m³.
💡 Hint: Remember to calculate the area correctly based on the dimensions given.
Question 2
Discuss how altering the angle of attack of an airplane wing can affect lift and drag during flight.
💡 Hint: Think of how the airflow changes around the wing.
Challenge and get performance evaluation