Difference between revisions of "Upthrust"
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===About Upthrust=== | ===About Upthrust=== | ||
| + | : [[Upthrust]] is a [[force]] so it is [[Measure|measured]] in [[Newton]]s. | ||
: The [[force]] of [[upthrust]] is equal to the [[weight]] of [[fluid]] that has been [[Displace|displaced]]. | : The [[force]] of [[upthrust]] is equal to the [[weight]] of [[fluid]] that has been [[Displace|displaced]]. | ||
: An [[object]] in the [[water]] experiences as lot of [[upthrust]] because [[water]] is [[Density|dense]]. | : An [[object]] in the [[water]] experiences as lot of [[upthrust]] because [[water]] is [[Density|dense]]. | ||
Revision as of 12:27, 15 October 2018
Key Stage 3
Meaning
Upthrust is a force that acts upwards in a fluid due to the fluid being displaced.
About Upthrust
- Upthrust is a force so it is measured in Newtons.
- The force of upthrust is equal to the weight of fluid that has been displaced.
- An object in the water experiences as lot of upthrust because water is dense.
- Upthrust is weak in the air because the air is not very dense. For most objects in air upthrust can be ignored because it is so small.
Examples
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| A boat floats on the water because the weight is balanced by the upthrust. | A submarine can change the amount of upthrust in order to rise or sink in the water. |