Unformatted text preview: stick, which is often worn down, but rather from a line that is more clearly deﬁned, such as the 1 cm line (you’d then have to subtract 1 cm from the value you read on the meter stick). Virtually all other types of measurements that you will make will require similar care and thought to minimize the error in the measurements. In practice when we make a measurement what we are actually determining is a range of values that we believe contains the actual value. When the error in a measurement is minimized, what is left is the inherent uncertainty. It is necessary to estimate the size of this uncertainty and record it with the value of your measurement in your data table. If we measure a quantity a with an uncertainty δa we 95...
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- Fall '08
- Physics, proper experimental techniques