Exercise
Form 12: Saltwater vs Fresh Water Buoyancy
In this engaging experiment, students will explore the science of buoyancy by comparing how objects float in saltwater versus freshwater, discovering the principles of density and displacement while gaining hands-on experience with the fascinating properties of different water types.
Questions
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MultiChoice
Saltwater has a higher density than freshwater. Where will a boat float higher?
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MultiChoice
When a cargo ship sails from the ocean (saltwater) into a freshwater river, what happens to the ship?
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MultiChoice
Why is it easier for a swimmer to float in the Dead Sea than in a freshwater swimming pool?
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MultiChoice
When salt is dissolved in water, the density of the solution:
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MultiChoice
A raw egg sinks in fresh water. If plenty of salt is added and stirred into the water, what happens?
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MultiChoice
1 m³ of freshwater displaced gives 1000 N buoyant force. 1 m³ of ocean water (d = 1025 kg/m³) gives how much buoyant force?
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MultiChoice
What reference mark on ships indicates the maximum safe loading depth in different water densities?
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MultiChoice
Why does saltwater have a higher density than freshwater?
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MultiChoice
A floating block of wood has weight W. The buoyant force on it in freshwater is B_fresh and in ocean water is B_ocean. Compare B_fresh and B_ocean.
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MultiChoice
How does the submerged volume of a floating block in saltwater compare to its submerged volume in freshwater?
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MultiChoice
Average ocean water has a density of approximately:
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MultiChoice
If an object's density is 1.01 g/cm³, it will: