Classical Mechanics > Motion in One Dimension > Velocity
Classical Mechanics > Motion in Two Dimensions > 2D Acceleration
Classical Mechanics > Newton's Second Law > Force & Acceleration
Fluid Mechanics > Statics of Fluids > Density and Buoyancy
Vetted
Highlights:
Forces are used to investigate how centrifugation and sedimentation can characterize small particles.
Abstract:
This detailed problem investigates how sedimentation and analytical ultracentrifugation can be used to characterize the size of small molecules in a non-destructive way. Students calculate terminal velocity using an analysis of forces (buoyant, drag, and gravity) and can see why ultracentrifugation (where acceleration is a million times g or more) is required for characterizing small molecules.
Resource Types:
In-class activity, Instructor supplement, Restricted access
Author:
TOPICS
Physics Topics:
Life Sciences Topics:
Medical Applications > Diagnostic (non-imaging) Techniques > Pressure & Fluid Diagnostics
Math Topics:
Algebra
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SUBMISSION DETAILS
Copyright: 2020 Dawn Meredith
CC: BY-NC-SA - Attribution, No Commercial uses and Share Alike. Derivative works must have the same licenseLast Edit Date:
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