CH 110 Lecture Notes - Lecture 1: Rock Balancing, Scientific Notation, Decimal Mark
30 Dec 2018
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Motion of its particles: ke= 0. 5mv^2, think rock falling off cliff, potential energy, stored energy, the energy a substance possesses as a result of its. It"s kinetic involves the motion of particles of matter: heat is not the same as temperature which is the measure of a particles ke. 1. 2 measurement in science & medicine: measurement consist of two parts: a number & unit. 1. 3 significant figures and measurement: sig figs . If there is no decimal point zeros following a nonzero digit are not significant, they are placeholders: 6,000 1 significant figure, a decimal point placed after zeros indicates zeros are significant, 6,000. 4 significant figures: zeros that appear before nonzero numbers, whether or not there"s a decimal point, are not significant. 21 is the correct answer with 2 significant figures: adding & subtracting, final calculated answer cannot have more places past the decimal point than the measurement with the fewest places past the decimal.
