Practice Center Of Buoyancy (11.4.2) - Buoyancy, Metacentre, Stability and Rigid Body Motion

Practice: Center of Buoyancy

Lesson 11.4.2Buoyancy, Metacentre, Stability and Rigid Body Motion

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9 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is buoyancy?
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Think of it as the force that allows boats to float.
Question 2.
What does the center of buoyancy represent?
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Consider where the effect of the fluid displacement is centered.
3Question 3.
What is the principle behind buoyancy?
- It is always equal to the weight of the submerged object
- It is equal to the weight of the fluid displaced
- It is dependent on the shape of the object
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Consider the definition of buoyancy.
4Question 4.
True or False: The center of buoyancy is always below the center of gravity.
- True
- False
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Think about how buoyancy and gravity interact.
Question 5.
Calculate the metacentric height of a rectangular barge of dimensions 4m x 2m x 1m floating in water. Assume the density of water is 1000 kg/m³.
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Use the formula relating buoyant force and volume.
Question 6.
A ship is designed such that its center of gravity is raised. Discuss how this could affect its stability.
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Consider the effect of height on the leverage and balance of forces.

5 more questions in this section. Enroll free to practise them all.