Think about what happens to the volume of an air-filled...

Name: Problem 48, Chapter 13: Conceptual Physics
Uploaded: 2019-09-10T15:28:13-08:00
Duration: 2 min 49 s
Channel: Ben Nicholson
Description: Think about what happens to the volume of an air-filled balloon on top of water and beneath the water. Then rank the buoyant forces on a weighted balloon in water, from greatest to least, when it is a. barely floating with its top at the surface. b. pushed 1 m beneath the surface. c. pushed 2 m beneath the surface.

Think about what happens to the volume of an air-filled balloon on top of water and beneath the water. Then rank the buoyant forces on a weighted balloon in water, from greatest to least, when it is a. barely floating with its top at the surface. b. pushed 1 m beneath the surface. c. pushed 2 m beneath the surface.

Think about what happens to the volume of an air-filled balloon on top of water and beneath the water. Then rank the buoyant forces on a weighted balloon in water, from greatest to least, when it is
a. barely floating with its top at the surface.
b. pushed 1 m beneath the surface.
c. pushed 2 m beneath the surface.

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Relation between Volume and Buoyant Force

The buoyant force acting on an object is directly related to the volume of fluid displaced by it. For gas-filled objects, where volume can change due to compression under increased pressure, the buoyant force also changes. A larger displaced volume results in a higher buoyant force, and vice versa.

Compressibility of Gases

Gases are compressible, which means that their volume changes in response to the surrounding pressure. When a gas-filled object, like a balloon, is submerged in a fluid, the increasing pressure at greater depths compresses the gas, potentially reducing its volume and thus altering the buoyant force acting on the object.

Archimedes' Principle

This principle states that any object immersed in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced by the object. It forms the basis for understanding buoyancy and helps determine whether an object will sink, float, or remain neutrally buoyant in a fluid.

Hydrostatic Pressure

Hydrostatic pressure refers to the pressure exerted by a fluid at equilibrium due to the force of gravity. This pressure increases with depth, meaning that objects submerged deeper in a fluid experience greater external pressure, which, in turn, affects the forces acting on them, including their buoyancy.

Transcript

Please give Ace some feedback