1D50.40 Pail of Water
Concepts
Forces in circular motion
Overview
A pail of water is swung in a full circle and the water does not fall out when the pail is upside down.
Details
Equipment
- [1] Pail of water
- Packing chips (optional)
Classroom Assembly
- Fill the pail about 1/3 full with water.
Important Notes
- Practice this demo in advance. Confidence and a smooth motion are required.
Script
- Swing the pail vertically, starting with a low amplitude and working up to large amplitudes.
- Continue to increase the amplitude of the swing until the pail swings in a full circle.
(Optional) You may use packing chips instead of water to show that the chips fall out if the pail is stopped when upside down.
Additional Resources
References
- PIRA 1D50.40
Disclaimer
- Don't attempt this at home!
Last revised
- 2023
Technicals
- Original construction: purchased.
Related AV
Related demos
- Waiter's Tray
- Coin on a Coathanger
If you have any questions about the demos or notes you would like to add to this page, contact Ricky Chu at ricky_chu AT sfu DOT ca.