Buoyancy questions: Submerged vs Floating

Click For Summary
SUMMARY

This discussion clarifies the concepts of buoyancy, specifically the differences between submerged and floating objects. It establishes that for floating objects, the buoyant force equals the weight of the object, while submerged objects experience a buoyant force that can be calculated using the equation Fnet = pVdisplacementg. The relationship between volume and buoyancy is critical, as it directly influences the buoyant force acting on an object. The equations provided are essential for calculating forces related to buoyancy in various scenarios.

PREREQUISITES
  • Understanding of basic physics concepts, particularly forces and equilibrium.
  • Familiarity with the principles of buoyancy and Archimedes' principle.
  • Knowledge of fluid density and its role in buoyancy calculations.
  • Ability to manipulate and apply mathematical equations in physics.
NEXT STEPS
  • Study Archimedes' principle in detail to understand buoyancy fundamentals.
  • Learn how to calculate buoyant force using the equation Fnet = pVdisplacementg.
  • Explore the relationship between volume and buoyancy in different fluids.
  • Practice solving problems involving submerged and floating objects using the provided equations.
USEFUL FOR

Students studying physics, educators teaching buoyancy concepts, and anyone seeking to understand the principles of submerged and floating objects in fluid mechanics.

PhysicsTyro
Messages
1
Reaction score
0
Is there a difference in submerged objects and floating objects? I know in floating objects that the Force of Buoyancy has to equal the Force of the object, but I'm not sure about submerged objects. What exactly is a submerged object?

Another question I have: what exactly does volume have to do with buoyancy?

Lastly: I was given three equations and I wanted to know when and how I used them:

Fnet = pVdisplacementg

Fnet = mg-pVg

mg = pVg (or m=pV)

All help is appreciated and sorry if these questions seem rather like 'duh' questions, but I simply don't understand buoyancy and I don't want to fall behind in class.
 
Physics news on Phys.org
My bet is that this thread is the next one to get sent downrange to the Homework forum...
 

Similar threads

High School Does Buoyancy Apply When Not Fully Submerged?
  • · Replies 7 ·
Replies
7
Views
2K
High School Fully submerged block in a pool of water
  • · Replies 3 ·
Replies
3
Views
2K
High School What happens to buoyancy when a non-uniform force is applied to the liquid?
  • · Replies 5 ·
Replies
5
Views
2K
High School How Does Liquid Density and Viscosity Influence Free Fall Braking?
  • · Replies 2 ·
Replies
2
Views
2K
Buoyancy: Will the Object float or sink or remain at a depth?
  • · Replies 11 ·
Replies
11
Views
2K
High School Buoyancy force on the partially submerged object
  • · Replies 1 ·
Replies
1
Views
9K
High School Do the Equations for Apparent Weight and Buoyant Force Contradict Each Other?
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Archimedes' Buoyancy: Which Ball Will Experience a Greater Buoyant Force?
  • · Replies 37 ·
2
Replies
37
Views
9K
High School Water Displacement: Floating vs Submerged Objects
  • · Replies 1 ·
Replies
1
Views
4K
High School Using energy principles to find equilibrium depth of floating object
  • · Replies 8 ·
Replies
8
Views
1K