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29 Cards in this Set
- Front
- Back
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metric system |
measurement system based on the number 10. |
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mass |
is a measure of the amount of matter in an object.
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meniscus |
top of water "skin", or curve.
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SI |
version of the metric system called the International System of Units. |
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weight |
is a measure of the force of gravity acting on an object |
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volume |
is the amount of space an object or substance takes up |
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density |
is a measure of how much mass is contained in an object |
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estimate |
an approximation of a number on a reasonable assumptions. |
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accuracy |
refers to how close a measurement is to the true or accepted value. |
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precision |
refers to how close a group of measurements are to each other. |
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significant figures |
is a measurement that includes all digits measured exactly, plus one estimated digit. |
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percent error |
calculations are a way to determine how accurate an experimental value is. |
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mean |
is the numerical average of the set of data |
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medain |
is the middle number in a set of data. |
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mode |
is the number that appers most often in a set of data. |
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range |
in a set of data , difference between the largest and smallest number. |
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anomalous data |
data that does not fit in with the res tof the data. |
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graph |
is a "picture" of the data. |
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linear graph |
is a line ghraph in which pinots yeild a straight line. |
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nonlinear graph |
in which the pinot do not yeild a straight line. |
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model |
is any reprsentation of a set of data |
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system |
is a group of parts that work together to perforem a funtion or to preduce a result. |
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input |
is a materail or energy that goes into a system. |
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process |
is what happens in a system |
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saftey symbol |
alert you that there is a possible source of accidents in a labortory |
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field |
any are outside a labatory. |
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displacement |
is when smethng goes into water and and is measurers how much water was "moved" or displaced. |
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output |
is the material or energy that comes out of a system. |
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feedback |
is the output that changes in a system in some way. |
