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Study notes exam 1

# Study notes exam 1 - 2 zeros within a number are...

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General Physics I - Introduction Standard units: length [m] - distance light travels in a vac. In 1/299729458 s mass [kg] - actual item time [s] - vibration of a cesium-133 atom mks vs. cgs vs. fps volume [m 3 ] - liter = 1000 cm 3 Prefixes: mega (M) = 10 6 kilo (k) = 10 3 centi (c) = 10 -2 milli (m) = 10 -3 micro ( ) = 10 -6 Units and dimensional analysis M - mass - kg T - time - s L - length - m L 2 - area - m 2 Dimension Correctness!!!!!! L 3 - volume - m 3 L/T - velocity - m/s L/T 2 - acceleration - m/s 2 Significant Figures 1) zeros at the beginning are never significant
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Unformatted text preview: 2) zeros within a number are significant 3) zeros at the end, past a decimal, are significant 4) zeros at the end, without a decimal, are not significant + or - = same number of decimal places as the number with the lowest number of decimal places of the numbers used. * or / = same number of significant figures as the number with the lowest number of significant figures of the numbers used. Trigonometry: sin = opp/hyp cos = adj/hyp tan = opp/adj C 2 = A 2 + B 2...
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