Lab 5 is about the science of measurement. We will give it only an introductory look,
but measurement is one of the important aspects of science. It is only through measurement
that we can learn numerical facts about the world. We call these numerical facts
There are several lessons to be learned about measurements from this lab
- There is no such thing as a perfect measurement. All measurements
contain a level of uncertainty depending on the accuracy of the measurement and the
precision of the measuring instrument.
- Physical scientists rely upon measurements of six quantities:
Mass, Length, Time, Temperature, Electric Charge, Radiation Intensity.
- There are methods for measuring and reporting the magnitude of
errors in a given measurement or sets of measurements.
- We usually compare measured or calculated quantities to some standard
in order to measure errors and to build confidence in our measurements.
- The precision of measuring instruments can be measured by the
concept of "least count" and recorded by using the appropriate number of
- Certain relationships which have been theoretically predicted
can be tested by making measurements of appropriate quantities.
Go to Lab 4