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Ch 12 vocab
test
| Question | Answer |
|---|---|
| Fluid | A substance that has no fixed shape and yields easily to external pressure; a gas or (esp.) a liquid. |
| Archimedes Principle | a law of physics stating that the apparent upward force (buoyancy) of a body immersed in a fluid is equal to the weight of the displaced fluid. |
| Buoyant | The tendency or capacity to remain afloat in a liquid or rise in air or gas. The upward force that a fluid exerts on an object less dense than itself. |
| Elasticity | the tendency of a body to return to its original shape after it has been stretched or compressed |
| Specific Heat | The heat required to raise the temperature of the unit mass of a given substance by a given amount |
| Amorphous | Without a clearly defined shape or form. |
| Crystalline | Having the structure and form of a crystal; composed of crystals. |
| Strength | Physical power and energy: |
| Bernoulli's Principle | The principle in hydrodynamics that an increase in the velocity of a stream of fluid results in a decrease in pressure. |
| Density | The degree of compactness of a substance: "bone density". |
| Malleability | the property of being physically malleable; the property of something that can be worked or hammered or shaped without breaking. |
| Brittleness | firm but easily broken. |
| Ductility | the malleability of something that can be drawn into threads or wires or hammered into thin sheets. |
| Pressure | The continuous physical force exerted on or against an object by something in contact with it. |
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taydiebear
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