Studied by 0 people
Looks like no one added any tags here yet for you.
physics
body of knowledge that provide organized answer to our questions about physical world
Phenomena in the physical world to physical laws to mathematical form to quantitative result
goal of physics
System of Measurements
process associating numbers with physical quantities and phenomena
Units of measurement SI units
A different base unit is used for each quantity
Significant figures
refers to the digits that were measured
Ambiguous
can’t tell whether zeroes measured or only showing decimal
Scientific notation
is a way of writing very large or very small numbers
Accuracy
closeness of a measured value to a standard or known value
Precision
closeness of two or more measurements to each other
Dimensional analysis
also known as factor label method, is a method to convert one unit to a different unit
has one factor used for measuring
measurement method of accuracy
has multiple factors for measuring
measurement method of precision
The kind of measuring device used, Methods in getting the measurement, condition in which the measurement is made
factors why errors occur in a measurement
Random error and Systematic error
types of error
random error
error that has no pattern and inconsistent
Systematic error
consisted and repeatable error
Mean
measure of central tendency of a probability distribution along median and mode
Variance
Measurement variability from the average or mean
Standard Deviation
a statistic measuring the dispersion of a dataset relative to the mean
Variance
Inversely proportional to precision
