Practice Stability Of Floating Objects (11.5) - Buoyancy, Metacentre, Stability and Rigid Body Motion

Practice: Stability of Floating Objects

Lesson 11.5Buoyancy, Metacentre, Stability and Rigid Body Motion

Practise this section

8 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the buoyant force?
Show hintHide hint
Think about what happens when you put an object in water.
Question 2.
Define the center of buoyancy.
Show hintHide hint
Where do you think the buoyant force acts?
3Question 3.
What determines if an object will float or sink?
- The shape of the object only
- The buoyant force compared to its weight
- The color of the object
Show hintHide hint
Consider Archimedes' principle.
4Question 4.
True or False: The center of buoyancy always stays the same regardless of the object’s position in water.
- True
- False
Show hintHide hint
Remember how the buoyant force acts on the displaced fluid.
Question 5.
A boat with a CG of 1.2m above the waterline has a metacentric height of 1.5m. What is the stability condition of the boat?
Show hintHide hint
Why does this height difference help the boat stay stable?
Question 6.
Describe how the design of an oil tanker, which has a wide and flat base, contributes to its stability in rough seas.
Show hintHide hint
Think about how it moves in water during tides.

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