'Measured numbers' diaporamas de présentation

1.2 Measurement & Scientific Notation

1.2 Measurement & Scientific Notation. Measurement. You make a measurement every time you Measure your height. Read your watch. Take your temperature. Weigh a cantaloupe. Measurement in Science. In science and allied health we Measure quantities. Do experiments.

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Base Units

Base Units. Metric System -standard, used internationally(easy to communicate through language barriers -makes conversions simpler -based on the number 10 & eliminates useless memorization of numbers

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Honors Chemistry Unit I - Power Point 4

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Honors Chemistry Unit I - Power Point 4

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CHEM 1123 Survey of General, Organic, and Biochemistry

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Chapter 1 Lesson4

You describe what math skills scientists use in collecting data and making measurements. You will identify the math skills scientists use to analyze their data. Chapter 1 Lesson4. ESTIMATION ACCURACY PRECISION SIGNIFICANT FIGURES REASONABLE ANOMALOUS DATA. Significant Figures. Physical Science.

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Accuracy & Precision

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Significant Figures

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Significant Figures

Significant Figures. What is a significant figure?. There are 2 kinds of numbers: Exact : Known with certainty. Example: the number of students in this room Approximate: anything MEASURED. Example: Mass, volume, length, weight, height No measurement is perfect.

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Significant Figures

Significant Figures. What is a significant figure?. There are 2 kinds of numbers: Exact : Known with certainty. Example: the number of students in this room Approximate: anything MEASURED. Example: Mass, volume, length, weight, height No measurement is perfect.

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Significant Figures

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Significant Figures

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Significant Figures

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Significant Figures

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Significant Figures

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Exact Numbers

Exact Numbers. Obtained when you count objects 2 soccer balls 1 watch 4 pizzas Obtained from a defined conversion factors 1 foot = 12 inches 1 meters = 100 cm Not obtained with measuring tools Do not limit the # of sig figs in the answer. Learning Check. A. Exact numbers are

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