Archimedes' Principle
From UO Physics Demonstration Catalog
Return to Fluid Statics
Description:
This Demo demonstrates Archimedes' Principle which states that any body submerged in fluid is acted on by an upward force. This is known as buoyancy. The first step is to show the spring scale's measurement simply holding the mass, beaker with water in it. The beaker below sitting in top of a lab jack has water in it right at the hole in the side of the beaker. Raise the lower beaker so the mass is slowly lowered into the beaker of water. The water displaced is collected. Nite how the weight measured by the Spring Scale decreases as the mass is submerged due ti the buoyant force. Once the mass is fully submerged, pour the displaced water into the bucket above the mass and see that the spring scale returns to the original weight. The weight of the displaced fluid is equal to the buoyant force.
Location:
- Archimedes Apparatus Set-up located in Glass Cabinet T-1
- Spring Scales are in Drawer 10
- Lab Jack
- Stable Rod StandBeakers are on Shelf T
- Top Video, Sample calculation.
- Bottom Video Shows the Demo Set-up and one way to perform it.