Term
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Definition
| the tendency for things to float in liquids. |
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Term
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Definition
| the upward force on objects in fluids. |
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Term
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Definition
| The liquid particles push the object against the force of gravity away from the center of the earth. |
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Term
| What is buoyancy measured in |
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Definition
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Term
| Why can something very large and very heavy float in water |
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Definition
| The weight needs to be spread in a big enough area. Anything can float if so. If the weight is spread out over a large surface area the average density will be low enough for it to float. Design and material also affects buoyancy. |
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Term
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Definition
| the total mass of substances on board divided by the total volume |
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Term
| What is Archimedes principle |
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Definition
| To measure the volume of an irregular solid you can put it in a cup/tub full of water and measure the volume of the water that spills out. You will get the volume of the object |
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Term
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Definition
| Gravity is equal to buoyancy |
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Term
| What is the relationship between buoyancy and density |
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Definition
| Buoyancy depends on density of a substance. |
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Term
| Why will a boat float but a pin sinks |
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Definition
| The boat has a larger surface area, therefore, lowering the average density. The pin has a very small surface area causing it to sink |
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Term
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Definition
| A hydrometer measures a liquids density |
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