[CHEM 130] - Midterm Exam Guide - Comprehensive Notes for the exam (19 pages long!)
Document Summary
Making observations is critical to all science. A quantitative observation is called a measurement. Agreement among a set of measurements of the same quantity. Agreement of measurements with its true value. Digits that carry meaning and contribute to a numbers precision. At the end of a number are given significance if they are to the right of the decimal point. Used around the world to make measurements adaptable. Measure of the resistance experienced in a state of motion. A measurement always has some degree of uncertainty. The certain digits and the first uncertain digit. The uncertainty in the last number is usually assumed to be 1 unless otherwise indicated. The agreement of a particular value with the true value. The degree of agreement among several measurements of the same quantity. A measurement has an equal probability of being high or low. Occurs in the same direction each time.
