Lab #0 Uncertainties
What is an uncertainty?
Explain it using your own words rather than those from a textbook
Can you give examp
everyday life where uncertainties are
span style="letter-spacing:-.3pt; ">Vitally
important - perhaps your
could depend on this uncertainty!)
measures the radius of a sphere to be 3.4 ± .3 mm.
How would you interpret the result?
(i.e. if you were to go to the lab and do the measurement yourself, what
would you expect of your measurement?)
wrong with the way each of these measurements is quoted and how would you fix
± 0.3 mm
3.456 ± 0.312 mm
Please, provide a proper formula for every case.
Every measurement that you do
will be limited by the precision of your measuring device. The associated
uncertainty is called the "reading uncertainty." The reading uncertain
usually taken as half of the smallest scale division.
this seem reasonable
to you? Explain.
On your desk you have a vernier caliper, for measuring
lengths precisely, and a balance, for measuring mass. Figure out how to read the
scales on each instrument.
uncertaint▯yon each of the instruments?
Follow this link to review how to read caliper's scales