Unit 1
Nature of Physics
definitions
Dependent variable-variable whose value depends in that of another
Independent variable-variable whose variation does not depend on that of another
Direct relationship-two variables do the same thing, if one increases so does the other
Inverse relationship-two variables do the opposite of each other
Exponential relationship-function of the form
Linear relationship-in graphical form where variable and the constant are graphed they are a straight line
Significant figure- each of the numbers are used to express it to the required degree of accuracy
Accuracy-being correct or precise in a measurement or calculation
Precision-being exact in a measurement or calculation
Essential Questions
Nature of science- key ideas and principles and ideas which provide a description of science continually tests and challenges previous assumptions and findings
Hypothesis-educated guess, must be testable
Measurement-accuracy and precision is important
Variables-independent: input; variable you change dependent: output; changes as a result of the independent