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17 Cards in this Set
- Front
- Back
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metric system |
a system of measurement based on the number 10. |
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SI |
a system of units used by scientists to measure the properties of matter. |
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mass |
a measure of how much matter is in an object. |
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weight |
a measure of the force of gravity acting on an object. |
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volume |
the amount of space that matter occupies. |
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meniscuus |
the curved upper surface of a liquid in a column of liquid. |
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density |
the measurement of how much mass of a substance is contained in a given volume. |
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estimate |
an approximation of a number based on reasonable assumptions. |
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accuracy |
how close a measurement is to the true or accepted value. |
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precision |
how close a group of measurements are to each other. |
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significant figures |
all the digits in a measurement that have been measured exactly,plus one digit whose value has been estimated. |
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percent error |
a calculation used to determine how accurate,or close to the true value,an experimental value really is. |
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mean |
the numerical average of a set of data. |
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median |
the middle number in a set of data. |
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mode |
the number that appears most often in a list of numbers. |
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range |
the difference between the greatest value and the least value in a set of data. |
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anomalous data |
data that do not fit with the rest of a data set. |
