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25 Cards in this Set
- Front
- Back
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metric system
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a system of measurement based on the number 10
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SI
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The International System of Units
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mass
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a measure of the amount of matter an object contains
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weight
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a measure of the force of gravity acting on an object
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volume
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the amount of space an object takes up
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meniscus
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the curve at the top surface of water in a graduated cylinder
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density
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a measure of how much mass is contained in a given volume
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estimate
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an approximation of a number based on reasonable assumptions
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accuracy
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how close a measurement is to the true or accepted value
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precision
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how close a group of measurements are to each other
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significant figures
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the digits in a measurement that have been measured exactly, plus one digit whose value has been estimated
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percent error
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a calculation used to determine how accurate, or close to the true value, an experimental value really is
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mean
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the numerical average calculated by adding up all of the numbers and then dividing by the total number of items in the list
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median
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the middle number in a set of data
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mode
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the number that appears most often in a list of numbers
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graph
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a picture of your data
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horizontal axis
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the X axis or the graph line that runs left to right
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vertical axis
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the Y axis or the graph line that runs up and down
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origin
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the point where the two axes cross on the graph
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coordinate
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a pair of numbers used to determine the position of a point on a graph
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data point
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the point on a graph where coordinates intersect
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line of best fit
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a smooth line that reflects the general pattern of a graph
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linear graph
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a line graph in which the data points yield a straight line
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slope
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the steepness of a graph line; the ratio of the rise over the run
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nonlinear graph
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a line graph in which the data points do not fall along a straight line
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