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3 cards from this section. Quick, good the night before a test.
What unit is used to measure length?
Think about fundamental quantities.
Name a derived quantity.
Consider quantities calculated from length.
What is the base unit for mass in the SI system?
Consider what is standardized in measurements.
True or False: Random errors can usually be eliminated.
Think about human errors and their inevitability.
If a classroom measures 10m by 7m, what is its area in square meters? Additionally, how would you use a vernier caliper to measure the thickness of the classroom desk?
Recall the area formula and the usage of the caliper.
A researcher measures an object five times and gets the following readings: 15.2cm, 15.0cm, 15.3cm, 15.1cm, 15.2cm. Calculate the mean value and standard deviation of this set of measurements.
Think about the formula for the mean and how to compute the standard deviation.
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