'3 sig figs' diaporamas de présentation

Measurement & Significant Figures

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Thursday, October 31, 2013

Thursday, October 31, 2013. Happy Halloween! Standard IE1: Scientific progress is made by asking meaningful questions and conducting careful scientific experiments. Independent Practice: Section 3.3 Reading Packet Question: Copy the chart into your Journal. Measurements and Calculations.

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Math and Measurement

Math and Measurement. Unit 2. 10 mL Graduate. What is the volume of liquid in the graduate?. _ . _ _ mL. 6. 6. 2. Self Test. Examine the meniscus below and determine the volume of liquid contained in the graduated cylinder. The cylinder contains:. 7. 6. 0. _ _ . _ mL.

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Unit 1: Chemistry and Working With Numbers

Unit 1: Chemistry and Working With Numbers. Chemist A person who has the knowledge to change one material with certain properties into a new material with new properties. Science A collection of facts that are neither good or bad. Facts = data. 2 Types of facts

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Measurements & Calculations

Measurements & Calculations. Chapter 2. Section 2.1. Objective: show how very large or very small numbers can be expressed as the product of a number between 1 and 10 AND a power of 10. Scientific Notation. Scientific Numbers. In science, we often encounter very large and very

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Analytical Chemistry

Analytical Chemistry. Definition: the science of extraction, identification, and quantitation of an unknown sample. Example Applications: Human Genome Project Lab-on-a-Chip (microfluidics) and Nanotechnology Environmental Analysis Forensic Science. Course Philosophy.

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Scientific Measurements

Scientific Measurements. BIG NUMBERS. Scientists often work with very large numbers. National debt = $5,653,000,000,000 Bill Gates' net worth = $75,030,000,000 Distance to Alpha Centauri = 40,120,000,000,000,000 m Distance to Andromeda Galaxy = 21,800,000,000,000,000,000,000 g

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Scientific Measurements

Scientific Measurements. BIG NUMBERS. Scientists often work with very large numbers. National debt = $5,653,000,000,000 Bill Gates' net worth = $57,030,000,000 Distance to Alpha Centauri = 40,120,000,000,000,000 m Distance to Andromeda Galaxy = 21,800,000,000,000,000,000,000 g

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Measurement, Uncertainty and Significant Figures

Measurement, Uncertainty and Significant Figures. Measurement and Uncertainty. All measurements have uncertainty because... All measurement involves estimation; The precision of the instruments limits our ability to estimate. When reporting a measured value,

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Measurement & Conversions

Measurement & Conversions. Get ready for some math!!!!. Scientific Notation. Used for very large or very small numbers All numbers are represented by a number between 1 and 10 multiplied by a power of 10 The number of places the decimal point has moved determines the power of 10.

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SIGNIFICANT DIGITS

SIGNIFICANT DIGITS. & Significant Zero Rules. SIGNIFICANT DIGITS:. Represent numbers that are actually measured with some type of a measurement device. SIGNIFICANT DIGITS. Sig Digs will include all certain digits plus ONE estimated digit . 5.63 2 g. certain digits. estimated digit.

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Uncertainty in Measurement

Uncertainty in Measurement. Significant figures lecture. A digit that must be estimated is called uncertain . A measurement always has some degree of uncertainty. Why Is there Uncertainty?. Measurements are performed with instruments

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Significant Figures & Calculations

Significant Figures & Calculations. Chapter 2 Section 3 p. 36-42. 1. Nonzero digits are always significant 37.6 has three sig figs 4567 has four sig figs How many sig figs do the following have? a. 42 g b. 38.78 m c. 5 L d. 176.4 ml. Significant Figures Rules.

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Physics

Physics. Significant Figures. Nonzero Digits. All nonzero digits are significant 1, 2, 3, 4, 5, 6, 7, 8, 9. Embedded Zeros. Embedded Zeros are Significant Zeros between other nonzero digits are significant 60.5 3,008 340,506. Leading Zeros. Leading Zeros are NOT significant

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Using Scientific Measurements

Using Scientific Measurements. Chapter 2 Section 3. Objectives. Distinguish between accuracy and precision Determine the number of significant figures Perform mathematical operations involving significant figures Convert measurements into scientific notation

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Significant Figures

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Significant Figures and Rounding

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Significant Figures and Rounding

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The Metric System (SI)

The Metric System (SI). See http://online.cctt.org/physicslab/content/Phy1/lessonnotes/metricsystem/lessonSIsystem.asp. The Metric System (SI). See http://online.cctt.org/physicslab/content/Phy1/lessonnotes/metricsystem/lessonSIsystem.asp. Significant Figures (or Digits).

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