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Questions and Answers
What is the primary determinant of whether an object will sink or float in water?
What is the primary determinant of whether an object will sink or float in water?
Density is defined as the relationship between which two properties of an object?
Density is defined as the relationship between which two properties of an object?
The phenomenon of water level rising when an object is immersed is known as:
The phenomenon of water level rising when an object is immersed is known as:
Who is credited with discovering the principle that explains displacement and buoyancy?
Who is credited with discovering the principle that explains displacement and buoyancy?
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What is the upward force exerted by a fluid that counteracts the weight of an immersed object called?
What is the upward force exerted by a fluid that counteracts the weight of an immersed object called?
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According to Archimedes' Principle, the buoyant force on an object is equal to the:
According to Archimedes' Principle, the buoyant force on an object is equal to the:
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Why does a large boat made of metal, which is denser than water, still manage to float?
Why does a large boat made of metal, which is denser than water, still manage to float?
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Which of the following properties is explicitly stated as NOT being a determinant of whether an object sinks or floats?
Which of the following properties is explicitly stated as NOT being a determinant of whether an object sinks or floats?
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If you fill a shoebox with feathers, pebbles, and water separately and weigh each, which would be the least dense based on the principles described?
If you fill a shoebox with feathers, pebbles, and water separately and weigh each, which would be the least dense based on the principles described?
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What must be true for an object to float on water in terms of the weight of the object and the buoyant force acting on it?
What must be true for an object to float on water in terms of the weight of the object and the buoyant force acting on it?
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Study Notes
Sinking and Floating
- Objects either float or sink when placed in water.
- Size doesn't determine whether something sinks or floats.
- Density is the key factor in determining if an object floats or sinks.
Density and Water
- Density is the weight of a certain amount of an object.
- Objects with greater density than water sink and objects with a lower density float.
- Comparing the weight of an object to the weight of an equal volume of water will determine sinking or floating.
Archimedes and Displacement
- Displacement occurs when an object moves water out of its place.
- The water displaced weighs the same as the object.
- Archimedes Principle describes the relationship between an object's weight and the buoyant force.
- The buoyant force is the pushing force created by the water equal to the weight of the object in it.
Why Do Boats Float?
- Boats, despite their weight, float because they displace an amount of water equal to their weight.
- Boats are like large boxes containing air, making them less dense than water.
- The weight of air in boats reduces an object's density compared to that of water.
- A one-ton boat displaces one ton of water, generating an upward buoyant force to support the weight.
- Water has a very high density, requiring only 250 gallons to equal the weight of a ton.
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Description
Explore the principles of buoyancy and density with this quiz on sinking and floating. Understand why some objects float while others sink, and learn about Archimedes' Principle and displacement. Perfect for those studying the fundamentals of physics.
