Practice Forces In A Fluid At Rest (11.3.1) - Buoyancy, Metacentre, Stability and Rigid Body Motion

Practise this section

9 questions

Flashcard drill
2 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
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is pressure in a fluid determined by?
Show hintHide hint
Think about how weight affects pressure.
Question 2.
Define buoyant force.
Show hintHide hint
It relates to Archimedes principle.
3Question 3.
What is the formula for pressure in fluid?
- P = ρgh
- P = ρg
- P = h/ρ
Show hintHide hint
Think about the relationship between pressure, fluid density and depth.
4Question 4.
True or False: The buoyant force is always equal to the weight of the object.
- True
- False
Show hintHide hint
Consider why something can float or sink.
Question 5.
An object weighing 200 N is submerged in water. Calculate the volume of water it displaces.
Show hintHide hint
Use the weight of the displaced fluid to find volume.
Question 6.
A ship has a center of gravity located 2m below its metacenter. Discuss the stability advantages this may provide.
Show hintHide hint
Consider how balance functions with height differences.

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