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Floating & Sinking. What is upthrust?. The object pushes some water out of the way The object feels an upward force called upthrust Upthrust allows ships, which are made of steel, to float. Measuring upthrust.
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What is upthrust? • The object pushes some water out of the way • The object feels an upward force called upthrust • Upthrust allows ships, which are made of steel, to float
Measuring upthrust Use a force meter to measure the weight of an object in air & in water. Record the results in the table.
Submarines • Submarines can float and sink • They do this by controlling their weight and the upthrust
The Cartesian Diver • Draw a diagram to show the Cartesian diver. Explain how it was made . • Describe what happened when the bottle was squeezed. What happened to the water in the diver?