Practice Introduction (11.2) - Buoyancy, Metacentre, Stability and Rigid Body Motion

Practice: Introduction

Lesson 11.2Buoyancy, Metacentre, Stability and Rigid Body Motion

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8 questions

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Exercise
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6 sample questions

Question 1.
Define buoyancy.
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Think about how objects float.
Question 2.
What does Archimedes' principle state?
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Remember the relationship between weight and displacement.
3Question 3.
What does Archimedes' principle describe?
- Buoyant force equals weight of displaced fluid
- Weight equals mass times gravity
- Pressure equals force divided by area
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Think about floating objects in fluid.
4Question 4.
True or False: A metacenter is where buoyant force acts when the object is tilted.
- True
- False
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Recall the earlier discussion about buoyancy.
Question 5.
A rectangular box is submerged in water. If the box dimensions are 2m x 1m x 1m, with a density of 500 kg/m³, calculate the buoyant force acting on the box.
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Use the formula: Buoyant Force = Density of Fluid * Volume Displaced * g.
Question 6.
A floating object is observed to have its center of gravity and metacenter coinciding. What type of equilibrium is this, and what does it imply about the object's stability?
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Consider the implications when buoyancy and weight act through the same point.

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