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3 cards from this section. Quick, good the night before a test.
Define what a systematic error is.
Think about errors that are not random and affect all measurements in one way.
Give an example of a systematic error.
Consider common laboratory instruments that might always be off by a certain amount.
What is a systematic error?
Think about errors that do not change and always influence measurements the same way.
True or False: Systematic errors can always be completely eliminated.
Consider how instruments can drift over time even with calibration.
A scale consistently reads 3 grams heavier than the true value. A user measures a sample that weighs 10 grams according to the scale. Calculate the actual weight.
Subtract the amount by which the scale is off from the measured weight.
In a series of experiments, a thermometer consistently reads 2°C higher than the actual temperature. If an experiment is conducted at a recorded 25°C, what is the actual temperature?
Adjust the recorded temperature down by the known systematic error.
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