| The upthrust, or buoyancy, keeps ships afloat. |
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| The upthrust, or buoyancy, keeps swimmers on top of the water. |
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| The upthrust, or buoyancy, keeps ships afloat. |
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| The upthrust, or buoyancy, keeps swimmers on top of the water. |
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| Look carefully at the picture. |
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1. The balances show the same weight in air and in water. What do you notice? 2. The ruler shows equal weights at each end, in air and again in water. What do you notice? |
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1. You should see that the weight shown by the balance where the weight is suspended in water is less. 2. You should see that the ruler is lower at one end than the other. The apparent loss in weight is caused by the buoyamcy of the water. |
