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chapter 1
| Question | Answer |
|---|---|
| a method of research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested | scientific method |
| an educated guess | hypothesis |
| a variable in a functional relation whose value determines the value or values of other variables, as x in the relation y = 3 x 2 | independent variable |
| the event studied and expected to change when the independent variable is changed. | dependent variable |
| Experimental control attempts to predict events that will occur in the experimental setting by neutralizing the effects of other factors | experimental control |
| mass per unit volume | density |
| a measure of the accuracy of any measured value. It is easily determined by comparing the difference between the actual value and the measured value to the actual value itself | percent error |
| all the nonzero digits of a number and the zeros that are included between them or that are final zeros and signify accuracy | significant figures |
Created by:
kcoons
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