'Units cancel' presentation slideshows

Scientific Numeracy

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Changing Units

Changing Units. ?. The Problem. Example: You need to know an answer in ? g but your scale measures in mg. Sometimes you need a different metric prefix than you have. ( )(1) =. Math Fact # 1. Any quantity multiplied or divided by 1 does not change. Math Fact # 2.

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Unit 06

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Significant Figures Review

Significant Figures Review. How many significant figures are in each measurement? 0.074 m b. 40.007m c. 143g Correct or Incorrect ? 37.2 + 18.45 + 380.423 = 436.073 34 / 10.1 = 3.366336634. Kilogram Prototype. kg. Metric Units. cg. mg. g.

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AP Physics C Mechanics

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Measurements

Measurements. I can use the SI units of measurement I can convert using conversion factors. Reliability in measurements. Precise measurements will give the same results again and again Accuracy is how close you are to the accepted value. SI Units.

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Factor-Label Method (of conversion)

Factor-Label Method (of conversion). The factor-label method was developed to keep track of units in multi-step conversion problems. Factor-label method is a method for solving problems.

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Dimensional Analysis

Dimensional Analysis. Solving Conversion Problems. Objective. SWBAT use dimensional analysis to solve unit conversion problems. How To: Use Dimensional Analysis. Take lone number (given in problem) and place over 1.

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Measurement in Physics

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