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4 cards from this section. Quick, good the night before a test.
What does accuracy measure in a scientific context?
Think of accuracy in relation to a target.
Define precision in your own words.
How consistently can you hit the same point?
What term describes the closeness of a measurement to the true value?
Think of what it means to be close to something.
True or False: The least count of an instrument affects its precision.
What happens when you can measure smaller values?
If a scientist measures the length of a metal rod as 1.2 meters multiple times with minimum variation, but the actual length is 1.25 meters, calculate the error and determine the accuracy and precision of the measurements.
Evaluate both precision and accuracy based on repeated measurements against the true value.
A digital scale shows a weight of 2.5 kg for an object that weighs 2.53 kg. What is the percentage error in the measurement?
Remember to calculate error first and then use the percentage formula.
5 more questions in this section. Enroll free to practise them all.
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