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Archimedes' Law

The force exerted by a fluid on a floating or submerged object is equal to the weight of the water displaced.

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The Laws of Laziness

Have you ever lazed in the pool during summer. Felt the sun on your face and not moved. Enjoyed the sensation of just floating on the water. Then you have experienced Archimedes Law. The law states that if the mass of the water displaced is equivalent to the mas of the object that is being submerged, the object will float. 

Credit: pixabay.com
Source: http://pixabay.com/en/ferry-boat-ferry-ship-boat-123059/
License: CC BY-NC 3.0

Setting Sail [Figure1]

The boat that was sailing in the above picture is doing so simply because of archimedes principle. That means that the volume of the boat has to be so large that it can displace water with the same mass as the mass of the ship. This is also how the boats in the America's cup sail.

These speeding sail boats rely on archimedes law to stay afloat. With a long fin under water, these oats displace more water mass than their own mass. This allows them to skim over the water's surface.

Creative Applications:

1. In what industry other that sailing could archimedes' law be useful in?

2. Draw a sketch of an object that when using archimedes law can float on the water's surface.

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Image Attributions

  1. [1]^ Credit: pixabay.com; Source: http://pixabay.com/en/ferry-boat-ferry-ship-boat-123059/; License: CC BY-NC 3.0

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