The variable being measured in an experiment. It is dependant on the independent variable. The dependant variable should be plotted on the y-axis of a graph.
Back
Card 7
Front
Measuring apparatus such as ammeters, voltmeters and digital calipers that digitally measure and display a measurement
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Card 8
Front
A thin marker, such as a splint, that is used to ensure readings are taken from the same place each time. They are used to improve the accuracy of measurements
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Card 9
Front
The change in the y-axis value over the change in the x-axis value between two points. If the graph is curved, a tangent can be drawn to calculate the gradient at a specific point.
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Card 10
Front
The variable that is changed by the experimenter in an experiment. The independent variable should be plotted on the x-axis of a graph.
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Card 11
Front
A line drawn on a graph to demonstrate the pattern in the plotted data points
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Card 12
Front
The uncertainty of a measurement, expressed as a percentage of the recorded value
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Card 13
Front
A measure of how close a measurement is to the mean value. It only gives an indication of the magnitude of random errors, not how close data is to the true value.
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Card 14
Front
Added to the front of units to represent a power of ten change.
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Card 15
Front
Unpredictable variation between measurements that leads to a spread of values about the true value. Random error can be reduced by taking repeat measurements
