1.2a Notes – Standards of Measurement

Slides:



Advertisements
Similar presentations
Chapter 2 – Scientific Measurement
Advertisements

Agenda for each class. Starter: get out calculator and writing utensil Today’s learning targets: 2 and 3 Model: Cornell Notes– 1. 3 Variables Lab Safety.
Intro to Measurement Isn’t it just reading the ruler?
Accuracy and Precision
Pg  Scientific method  make observations  Do experiments  Create models/theories  Explain results/predict new answers.
Objectives The student will be able to: ● Distinguish between accuracy and precision ● Use significant figures in measurements and calculations.
Accuracy, Precision, Signficant Digits and Scientific Notation.
Chapter 1.5 Uncertainty in Measurement. Exact Numbers Values that are known exactly Numbers obtained from counting The number 1 in conversions Exactly.
Section 2.3 Measurement Reliability. Accuracy Term used with uncertainties Measure of how closely individual measurements agree with the correct or true.
Scientific Notation Converting into Sci. Notation: –Move decimal until there’s 1 digit to its left. Places moved = exponent. –Large # (>1)  positive.
“Uncertainty in Measurement”
USING SCIENTIFIC MEASUREMENTS Accuracy and Precision RHS Science Department.
Chapter 1 Section 2. Accuracy describes how close a measured value is to the true value of the quantity measured. a.k.a “the right answer”, or the agreed.
Measurement: quantity with _______ and a _____ g1.05 mL16 cm Measurement unit number.
Using Scientific Measurements. Uncertainty in Measurements All measurements have uncertainty. 1.Measurements involve estimation by the person making the.
Unit 1- Units and Measurement Chemistry. Scientific Notation, Measurement, Accuracy, Precision, Error.
Scientific Measurement. Measurements are fundamental to the experimental sciences.  Measurement: A quantity that has both a number and a unit.  Scientific.
Chapter One: Measurement 11.1 Measurements 11.2 Time and Distance 11.3 Converting Measurements 11.4 Working with Measurements.
ME 142 Engineering Computation I Computer Precision & Round-Off Error.
ACCURACY A description of how close measurement is to the true or accepted value of a measurement. Error or Absolute Error = Observed value – accepted.
CHAPTER 1 LESSON 3 & 4 MATH IN SCIENCE + GRAPHS. WHAT ARE SOME MATH SKILLS USED IN SCIENCE? SOME MATH SKILLS USED IN SCIENCE WHEN WORKING WITH DATA INCLUDE.
Accuracy, Precision, and Significant Figures in Measurement
4.158 Accuracy = Precision = Round to 3 significant figures 4 digits thousandths 4.16.
Uncertainty in Measurement Accuracy, Precision, Error and Significant Figures.
Accuracy and Precision Created by The North Carolina School of Science and Math.The North Carolina School of Science and Math Copyright North Carolina.
Problem of the Day x m x m x 10 8 km – 3.4 x 10 7 m 3. (9.21 x cm)(1.83 x 10 8 cm) 4. (2.63 x m) / (4.08 x.
Meeting 15 Introduction to Numerical Methods Error Analysis.
I-Precision: Refers to how close a series of
Chapter 2 Measurements and Calculations Or It all adds up!
Learning Targets for Measurement Skills Unit 1.2.
The Science of Physics Chapter #1 Ms. Hanan Anabusi.
Chapter 3 Vocabulary Measurement Scientific notation.
Accuracy vs. Precision. 2 minutes: Write what you think accuracy and precision mean 1 minute: discuss at your table what you think.
Accuracy vs. Precision. Calculations Involving Measured Quantities The accuracy of a measured quantity is based on the measurement tool. The last digit.
Using Scientific Measurements. Accuracy and Precision Accuracy –How close a measurement is to the true or accepted value Determined by calculating % Error.
Precision, Uncertainty and Accuracy Not very precise!
Objectives  Distinguish between Accuracy and Precision.  Determine the Precision of Measured quantities.
Scientific Measurement. Using and Expressing Measurements Measurement- a quantity that has both number and unit Scientific notation- using exponents to.
Matter, Measurement, and Problem Solving Reliability of Measurement.
Significant Digits What are they? And How do you use them?
Chapter 2 Measurements and Calculations Or It all adds up!
Significant Figures.
Accuracy and Precision
Significant Figures Fundamentals.
Chapter 3: Measurement: Accuracy, Precision, and Error
Begin today by making a list of at least three units of measure for length, volume, and weight used in the USA and compare it to the units used in the.
ME 142 Engineering Computation I
How big is the beetle? Measure between the head and the tail!
Accuracy and Precision
SIGNIFICANT DIGITS INTRODUCTION
Math in Science + Graphs
Scientific Measurement And Dimensional Analysis
1.5 Uncertainty in Measurement
August 15, 2011 Textbook Scavenger Hunt
Accuracy and Precision
Chapter 2 Accuracy vs Precision.
Significant Digits and Scientific Notation
Accuracy and Precision
Review of Essential Skills:
Uncertainty in Measurement
Significant Figures/Accuracy and Precision
Physical Quantities A quantity is a "physical quantity" if
CH. 2 - MEASUREMENT I. Using Measurements.
Accuracy vs. Precision & Significant Figures
Accuracy and Precision
Accuracy vs. Precision Accuracy is a description of how close a measurement is to the correct or accepted value of the quantity measured. Ex: if the correct.
SIGNIFICANT FIGURES.
Precision & Uncertainties
Science as a Way of Knowing
Lab Skills Intro.
Presentation transcript:

1.2a Notes – Standards of Measurement

Objectives Distinguish between precision and accuracy with respect to experimental data.

What is a standard? A standard is an exact quantity that people agree to use to compare measurements

Precision vs. Accuracy Precision = how closely measurements are to each other and how carefully measurements were made Accuracy = compares a measurement to the real or accept value

In-Class Assignment/Homework Discovery Education Videos Precision & Significant Digits Accuracy & Tool Choice Accuracy & Precision WKTs Next class: Bombs Away and How Big Activities