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## Physics / Upthrust in Fluids and Archimedes Principle

### Physics / Upthrust in Fluids and Archimedes Principle

Push an empty can in water. You will feel an upward force and you will find it difficult to push the can further. Water exerts force on the can in the upward direction. When a body is immersed in a liquid, the liquid exerts an upward force on the body. This force is called the upthrust or buoyant force.
Why do you feel lighter when you are in a swimming pool? This is due to upthrust. The effect of upthrust is that weight of the body immersed in a liquid appears to be less than its actual weight. There are two factors on which upthrust depends - Volume of the body and Density of the Liquid. Larger the volume of body submerged in liquid, greater is the upthrust. More the density of liquid, greater is the upthrust.
Upthrust = Volume of body x density of liquid x acceleration due to gravity.
Learn why bodies with density greater than density of liquid sink while body with density less than density of liquid float.
You can find out the magnitude of the upthrust by Archimedes' Principle. Archimedes' Principle states that when a body is immersed partially or completely in a liquid, it experiences an upthrust, which is equal to the weight of the liquid displaced by it. This principle is applied to liquids as well as gases.

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• ### Upthrust in Fluids and Archimedes Principle - SmartTest

Upthrust in Fluids and Archimedes Principle

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• Introduction to Upthrust in Fluids and Archimedes Principle
• Buoyancy and upthrust
• Archimedes' principle
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