Practice Specific Weight Variation In Fluids (1.11) - Basics of fluid mechanics

Practise this section

8 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
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What happens to pressure as you dive deeper into water?
Show hintHide hint
Think about the weight of the water above you.
Question 2.
What is Pascal's law?
Show hintHide hint
It’s about pressure being equal everywhere in a fluid.
3Question 3.
As depth increases in a fluid, pressure:
- Increases
- Decreases
- Remains the same
Show hintHide hint
Think about the overall weight of water in a swimming pool.
4Question 4.
True or False: Buoyancy only applies to objects fully submerged in water.
- True
- False
Show hintHide hint
Consider how half-sunken boats behave.
Question 5.
A submarine is designed to operate at a depth of 300 meters. Calculate the pressure it would experience at that depth, given that the density of seawater is approximately 1025 kg/m³.
Show hintHide hint
Recall the formula for hydrostatic pressure.
Question 6.
Discuss how changes in altitude influence buoyancy and pressure for a helium balloon ascending from sea level to 3000 meters.
Show hintHide hint
Consider how pressure changes with altitude.

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