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identify a problem
Perform research
create a hypothesis
test hypothesis
interpret results
create rule
what are the 6 steps of the scientific method
hypothesis
a tentative statement about the natural world leading to deductions that can be tested, must be reasonable, must be testable, and must not be an opinion
fact
something compenant observers agree upon and is a hypothesis has been tested over and over with the same general results
law
a generalization that tells what happens but not why it happens
theory
tells why something happens
length, mass, time, electric current, temperature, amount of substance, and intensity of light
what are the 7 SI base units
giga (G, +9), mega (M, +6), kilo (k, +3), hecta (h, +2), deka (da, +1), deci (d, -1), centi (c, -2), milli (m, -3), micro (-6), nano (n, -9)
what are the metric prefixes
vernier calliper
what is this
micrometer
what is this
accuracy
the nearness of a measurement/ measurements to the true value/average
precision
how close several measurements are to each other (more important)
standard deviation & average deviation from the mean (a.d)
what two equations test for precision
standard error & average deviation of the mean (A.D)
what two equations test for accuracy
the smallest number of decimal spot
what is the sig fig rule for addition & subtraction
the smallest number of sig figs
what is the sig fig rule multiplication & division
Note
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