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29 Cards in this Set
- Front
- Back
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Dimension |
Any measurable aspect of something |
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Measurement |
The comparison of some aspect to a proper measuring standard |
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Instrument |
Any man made device that that includes the standard for measuring |
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Standard |
Known quantity of a dimension that is agreed upon to be used when measuring |
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Graduated scale |
Mechanical instruments contain a |
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Unit |
The name and size of a portion of a dimension that has the value of one |
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Data |
Information collected from scientific observations |
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Quantitative data |
Numerical measurements |
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Qualitative data |
Precise word descriptions |
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Bias |
Occurs when an observer imposes his presuppositions on observational results |
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True |
T/F Qualitative data is far more likely to foster bias |
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Metric system |
System created in France based on the powers of ten |
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Cubic decimeter |
Equal to the volume of one liter |
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Standard kilogram |
Officially called the International prototype kilogram |
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SI |
The common abbreviation of the international system |
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Derived units |
Combinations of the SI base units |
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Base unit |
A unit defined by a set of measurable conditions able to be repeated |
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Error |
The difference between the measures value and its acceptable value |
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Accuracy |
Evaluated how close a measurement is to the acceptable value of the measurement |
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Precision |
Evaluated how exactly a measurement is made |
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Random errors |
The difference between each measurement and the average are |
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Repeatability |
Small random errors means that a measurement has good |
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Weight |
Indicates the amount of matter in an object |
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Mass |
The measure of the amount of matter in an object |
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Volume |
The space enclosed by an object |
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Formula |
A special kind of math problem that relates different measurable quantities |
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Pipettes |
Long thin eye droppers |
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Density |
A property of matter that you can use to identify substances |
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Natural philosophers |
Early scientists who studied all aspects of the physical world |
