Significant Figure Review

Slides:

Advertisements

Similar presentations

Significant Figures. 1.All nonzero digits are significant. Example: 145 (3 sig figs) 2.Zeroes between two significant figures are themselves significant.

Advertisements

Math Problems w/Sig Figs When combining measurements with different degrees of accuracy and precision, the accuracy of the final answer can be no greater.

Chemistry Notes Significant Figures & Scientific Notation

M May significant figures significant figures to nearest 1000to nearest tenthto nearest hundred thousandth.

Estimation and checking answers.. What you should already be able to do: Round to the required number of decimal places. Round to the required number.

Significant Figures Part II: Calculations.

R ounding Nearest 10 Nearest decimal place The nearest whole number Correct to 2 dps Nearest 1000.

Calculations with Significant Figures

Aim: How can we perform mathematical calculations with significant digits? Do Now: State how many sig. figs. are in each of the following: x 10.

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 & Measurement. How do you know where to round? In math, teachers tell you In math, teachers tell you In science, we use significant.

How many significant figures?

Significant Figures What do you write?

measured certain digits. last digit is estimated, but IS significant. do not overstate the precision 5.23 cm cm Significant Figures (Sig Figs) (uncertain)

Significant Figures. Rules 1.All nonzeroes are significant 2.Zeroes in-between are significant 3.Zeroes to the left are not significant 4.Zeroes to the.

Significant Figures (HOW TO KNOW WHICH DIGITS OF A NUMBER ARE IMPORTANT)

Chemistry 100 Significant Figures. Rules for Significant Figures  Zeros used to locate decimal points are NOT significant. e.g., 0.5 kg = 5. X 10 2 g.

How many sig figs are there?

WARM UP How many sig Figs are in the following measurements? x ,050, x 10 7.

Review the following vocabulary words for your recovery quiz tomorrow Matter Chemistry Volume Mass Weight Organic chemistry Measurement Accuracy Precision.

Dimensional Analysis Review AND SIGNIFICANT FIGURES.

Significant Figures Determine the number of significant figures in the following measurements: a)30.1 grams b) seconds c)200.0 miles d)0.050 liters.

Addition and Subtraction of significant figures. Rule 1 Before performing an addition or subtraction operation, round off numbers to the least amount.

Significant Figures.

Significant Figures and Rounding. Counting Sig. Figs. Pacific a.k.a.: Present Start with first non-zero, go in  direction Atlantic a.k.a.: Absent Start.

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

End Show © Copyright Pearson Prentice Hall Measurements and Their Uncertainty > Slide 1 of 48 Significant Figures in Calculations Significant Figures in.

Adding and Subtracting Using Significant Figures How many digits are significant and how do you know?

Sig. Fig. in math operations Multiplication and division: The answer to a multiplication or division problem cannot have more sig. fig. than the smallest.

Scientific Notation and Significant Figures. When it says to write your answers in the form: Then it means put your answer in scientific notation! Scientific.

Significant Figures. Significant Figures One sig fig One sig fig Two sig figs One sig fig One sig fig One sig fig four sig figs.

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 = __________.

UNIT 2: MEASUREMENT Topics Covered:  Significant Digits.

Step One: Do the math. Step Two: Identify the number of significant figures within the problem set. Step Three: Convert your answer to the lowest number.

Maths Skills. Uncertainties Use the smallest readable unit of instrument. Measuring length on a ruler eg. 1mm on ruler, uncertainty is mm.

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 Multiplication and Division Modern Chemistry, p

Significant Figures The amount of significant figures in a number tells us how accurate the number is. When we look at a number we should treat all figures.

Convert into scientific notation:

Part 2 Significant Figures with Calculations

Significant Figures Notes on PAGE _____. Significant Figures Notes on PAGE _____.

Significant Figures Sig Figs.

Significant Figures and Decimal Digits

Measurement in Experiments

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

Significant figures.

35 m = ______ cm 250 g = ______ kg 650 mm = ______ m 230 m = ______ km

1.6 – Calculating with Significant Figures

How to Calculate Answers using Significant Figures

Sig Fig Math and Measurement

Unit 0.5 Warm Up #1 How many sig figs are there in the following?

Exact and Inexact Numbers

Multiplying and dividing

How many sig figs are in each of the

Scientific Notation.

Significant Figures.

Significant Figures Practice Density Practice

Significant Figures.

Multiplying and dividing

Sig Fig Game Winning team earns 5 Bonus Points on the Sig Fig Quiz next week 5 Levels With each level increase, correct answers earn more points May.

Rounding Significant Figures (1 mark)

Convert to scientific notation

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

Significant Figures and Rounding

Calculation with Significant Figures

Using Sig Figs in Calculations

Maths Unit 1 (F) - Number Multiples Primes

Presentation transcript:

Significant Figure Review

Question 1 How many sig figs are in 45.8736? 6

Question 2 How many sig figs are in 0.000239? 3

Question 3 How many sig figs are in 0.00053200? 5

Question 4 How many sig figs are in 48000.? 5

Question 5 How many sig figs are in 6100? 2

Question 6 How many sig figs are in 3.982 x 106? 4

Question 7 How many sig figs are in 1.00040? 6

Question 8 What is 1.5587 round to 3 sig figs? 1.56

Question 9 What is 0.0037421 round to 3 sig figs? 0.00374

Question 10 What is 1.6683 x 105 round to 2 sig figs? 1.7 x 105

Question 11 Answer the following math problem with the correct number of sig figs: 32.37 x 1.54 49.7

Question 12 Answer the following math problem with the correct number of sig figs: 3.68 ÷ 0.07925 46.4

Question 13 Answer the following math problem with the correct number of sig figs: 6.09x105 x 3.8x108 2.3x1014

Question 14 Answer the following math problem with the correct number of sig figs: 0.56 + 0.153 0.71

Question 15 Answer the following math problem with the correct number of sig figs: 10.0 – 9.8742 0.1