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IPC VOCAB 16&17
CHAPTER 16&17
WORD | DEFINITION |
---|---|
matter | anything that has mass and takes up space |
homogeneous mixture | every sample of this material is the same |
heterogeneous mixture | two samples of this material might contain different kinds of matter |
element | a pure substance which contains only one kind of matter |
compound | contains two or more kinds of matter that cannnot be seperated by physical means |
substance | a sample of matter than cannot be seperated by physical means |
mixture | a sample of matter that contains two or more kinds of particles that can be seperated by physical means |
meniscus | the curve formed by the surface of a liquid |
displacement | measuring volume by placing an object in water and recording the change in water level |
indirect measurement | calculating size of very large or small objects through use of proportional relationships |
density | a measurement of the "compactness" of a substance; the ratio of its mass to volume |
hardness | a measurement of how easily a solid can be scratched |
brittleness | a measurement of how easily a solid will shatter |
elasticity | a measure of a solid's ability to return to its original shape after it is stretched or squeezed |
malleability | a measurement of how easily a solid can be pounded into thin sheets |
tensile strength | a measurement of how well a solid resists breaking when it is pulled on |
fluid | any materal that flows |
bouyancy | the upward force of a liquid or gas upon an object immersed in it |
Archimedes' principle | the force exerted on an object in a fluid is equal to the weight of the displaced fluid |
viscosity | a measure of a fluid's resistance to flow |