Centrifuges

Thousands of g in a lab

An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• Relative centrifugal force $= \omega^2 r / g$.
• Doubling the spin speed quadruples the g-force.
• Denser particles move outwards, separating mixtures.

Steps

1. Sorting by spinning
2. A salad spinner
3. A thousand g
4. A spin cycle
5. A lab centrifuge
6. Separating blood