It’s the middle of the week!

Slides:

Advertisements

Similar presentations

Physics Rules for using Significant Figures. Rules for Averaging Trials Determine the average of the trials using a calculator Determine the uncertainty.

Advertisements

1 Chapter 1 Measurements 1.3 Significant Figures in Calculations Copyright © 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings.

1 Chapter 1 Measurements 1.4 Significant Figures in Calculations Copyright © 2009 by Pearson Education, Inc.

Calculations with Significant Figures

POWERPOINT THE SECOND In which you will learn about: Scientific notation +/-/x/÷ with sig figs Rounding.

1 Chapter 2 Measurements 2.4 Significant Figures in Calculations Basic Chemistry Copyright © 2011 Pearson Education, Inc.

General, Organic, and Biological Chemistry Fourth Edition Karen Timberlake 1.6 Significant Figures in Calculations Chapter 1 Chemistry and Measurements.

UNIT ONE TOPIC: Significant Figures and Calculations.

Chapter 2 Significant Calculations And Scientific Notation.

Rule 1: When multiplying and dividing, limit and round to the least number of significant figure in any of the factors. Example 1: 39.0 mm X 385 mm X.

Significant Figures in Mathematical Operations The result of the mathematical operation cannot be expressed to any greater degree of certainty than the.

Significant Figures and Scientific Notation Significant Figures:Digits that are the result of careful measurement. 1.All non-zero digits are considered.

Significant Figures Not all numbers matter…. Significant Figures Definition: Digits of a number that are relevant when doing mathematical calculation.

Significant Figures & Scientific Notation. Significant Figures What do those words mean? – Important numbers.

Significant Figures 1.All non-zero digits are significant (2.45 has 3 SF) 2.Zeros between (sandwiched)non- zero digits are significant (303 has 3 SF)

Significant Digits Measurements. Description and Measurement  Key Vocabulary  Precision  Accuracy.

Significant Figures Part 2 Problem Solving Applications.

Drill – 9/14/09 How many significant figures: Now complete the back of the measurement worksheet from last week (the graduated.

Decimal Operations Jeopardy

Mastery of Significant Figures, Scientific Notation and Calculations Goal: Students will demonstrate success in identifying the number of significant figures.

RULE #1: Standard Scientific Notation is a number from 1 to 9 followed by a decimal and the remaining significant figures and an exponent of 10 to hold.

Significant Figures. Rule 1: Digits other than zero are significant 96 g = 2 Sig Figs 152 g = __________ Sig Figs 61.4 g = 3 Sig Figs g = __________.

Significant Figures. Significant Figure Rules 1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant. 1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9)

Mastery of Significant Figures, Scientific Notation and Calculations Goal: Students will demonstrate success in identifying the number of significant figures.

Be able to carry out basic mathematical operations using numbers expressed in scientific notation, without changing them to decimal notation. Be able to.

Adding and Subtracting with proper precision m m 12.0 m m m m m m m Keep in your answer everything.

Mathsercise-C Rounding Ready? Here we go!. Estimate the value of: 1 Rounding x 7.85 Answer Question 2 Round each number to a sensible figure.

Mathematical Operations with Significant Figures Ms. McGrath Science 10.

Significant Figures. Rule 1: Nonzero numbers are always significant. Ex.) 72.3 has 3 sig figs.

Significant Figures Box and Dot Method. Step 1  Draw a box around all nonzero digits, beginning with the leftmost nonzero digit and ending with the rightmost.

Adding, Subtracting, Multiplying and Dividing with Sig Figs.

Rules for Significant Figures

2.3 Significant Figures in Calculations

Part 2 Significant Figures with Calculations

1.4 Significant Figures in Calculations

Significant Figures Why significant figures are important

Significant Figures Sig Figs.

Significant Figures in Calculations

Significant Figures Why significant figures are important

Significant Figures Box and Dot Method.

Significant Figures in Calculations

Measurement in Experiments

Review of yesterday… How many sig figs are in the following? 0.02

Significant Calculations And Scientific Notation

Significant Numbers in Calculations

Multiply the following rational expressions. Show work!

1.6 – Calculating with Significant Figures

Welcome to Physical Science!

Scientific Notation Scientific notation takes the form: M x 10n

Significant Figures General Chemistry.

Measurements in Chemistry

Scientific Notation Scientific notation takes the form: M x 10n

Random error Systematic error.

Significant Figures All non-zero digits are significant (2.45 has 3 SF) Zeros between (sandwiched)non-zero digits are significant (303 has 3 SF)

Multiplying and dividing

SIGNIFICANT DIGIT RULES

Significant digits.

Significant Figures.

Significant Digits Calculations.

5. Significant Figures- = represent the valid digits of a measurement and tells us how good your instrument is.

Significant Figures in

Significant Figures Revisiting the Rules.

TOPIC: Significant Figures in calculations AIM: How do we add, subtract, multiply and divide measurement in significant figures? DO NOW: ( 5.

Multiplying and dividing

Convert to scientific notation

How do you determine where to round off your answers?

The Mathematics of Chemistry

Is it OK to write down all digits on your calculator?

Significant Figures in Calculations

Presentation transcript:

It’s the middle of the week! Do Now: Determine how many significant figures are in each number:

Calculations using Significant Figures When Multiplying and Dividing: Limit and round to the least number of significant figures in any of the factors

Calculations using Significant Figures When Adding and Subtracting: Limit and round to the least number of decimal places in any number that make up your answer.

Practice Complete “Pg 60” from the worksheet from yesterday.

Practice Perform the following operations expressing the answer in the correct number of significant figures.

Quiz Review Take a worksheet. There is a TON of work here. This is resource for you to use. I will post the solutions by the end of the day on mrcressnehs.weebly.com