Dimensional Analysis Review AND SIGNIFICANT FIGURES.

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

Introduction: Matter and Measurement Chapter 1. Uncertainty in Measurement The term significant figures refers to digits that were measured. When rounding.
1 Significant Figures Any digit that is not zero is significant kg 4 significant figures Zeros between nonzero digits are significant 606 m 3 significant.
Metric Conversions w/o Dimensional Analysis Just move the decimal!!
Calculations with Significant Figures
MATH SKILLS FOR PHYSICS
Do Now The speed of light is 300,000,000 m/s
Sig Figs, Scientific Notation, 1-Dimensional Motion, Units
Geometry Honors Section 7.1 Surface Area and Volume of Boxes.
How many significant figures?
Measuring and Units.
DERIVED UNITS Combining measurements to describe physical properties.
MATH SKILLS FOR PHYSICS Units / Unit systems Scientific notation/ Significant figures Algebraic manipulation Dimensional analysis Geometry / Trig identities.
Phys211C1 p1 Physical Quantities and Measurement What is Physics? Natural Philosophy science of matter and energy fundamental principles of engineering.
Physics Review What do I need to know???. Variables Definition Types – Independent – Dependent.
Significant Figures and Scientific Notation The measuring device determines the number of significant figures a measurement has. Significant figures reflect.
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.
Measurement and Sig. Fig. Practice
WARM UP How many sig Figs are in the following measurements? x ,050, x 10 7.
Phys211C1 p1 Physical Quantities and Measurement What is Physics? Natural Philosophy science of matter and energy fundamental principles of engineering.
Problem Solving Unit 1B Significant Figures, Scientific Notation & Dimensional Analysis.
Day 10, Wednesday, 9 September, 2015 Chapters 1 & 2 wrap up Test on Friday Equations of Motion.
Addition and Subtraction of significant figures. Rule 1 Before performing an addition or subtraction operation, round off numbers to the least amount.
Syllabus + Course Intro. 1.1 What is Chemistry? 1.2 & 1.3 Chemical Terminology 1.4 & 1.5 Things you need to know about Measurements 1.6 Unit Conversion.
Significant Figures.
1 Brainteaser August 6 th, 2012  If the mass of a lead cube is g and it measures 2.51cm x 2.49 cm x 2.49 cm, what is the density of lead?  Remember:
Significant Figures Multiplying and dividing. Multiplying and Dividing with Significant Figures When multiplying or dividing numbers round the answer.
Volume of rectangular prisms
Measurements in Experiments Chapter 1-2. Numerical Measurements Are used to perform science experiments. Gives number and dimensional unit  Example :
Calculating with Significant Figures Your team is only as strong as your weakest player (slowest runner)= Your final answer can not be more accurate than.
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.
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.
Chapter 1: Dimensional Analysis
Obj. 1.4 to 1.6.  A.) Metric System 1.) All SI units (notes from Table 1.4)  B.) Selected Prefixes you should know 1.) Table 1.5  C.) Length and Mass.
Units of Measurement Chapter 3. Using SI Units All metric units are based on multiples of 10, allowing you to convert easily between them. International.
Problem Solving – a Math Review
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.
Dimensional Analysis (a.k.a “Conversions”)
DO NOW` 1. Write the equation for the speed of light. 2. What two ways does light behave? DO NOW` 1. Write the equation for the speed of light. 2. What.
4 Units Clarify Sig. Figs..
Part 2 Significant Figures with Calculations
Significant Figures Sig Figs.
Homework Assistance Guide
Objectives Learn and apply the formula for the volume of a pyramid.
Review of yesterday… How many sig figs are in the following? 0.02
Problem Solving – a Math Review
Significant figures.
35 m = ______ cm 250 g = ______ kg 650 mm = ______ m 230 m = ______ km
How many Sig Figs? Start counting sig figs at the first non-zero.
Dimensional Analysis - warmup
1.6 – Calculating with Significant Figures
Significant Figure Review
2.6 – NOTES Dimensional Analysis
SI Units The worldwide scientific community and most countries currently use an adaptation of the metric system to state measurements. The Système International.
Multiplying and dividing
Dimensional Analysis Practice
Objectives Calculate the density of a sample using mass and volume.
Review of Essential Skills:
Chemistry Dimensional Analysis.
How many sig figs are in each of the
Scientific Notation.
Significant Figures.
Significant Figures Practice Density Practice
Significant Figures.
Multiplying and dividing
Integrated Science Midterm Review
Measurement Rounding.
AP Chem Take out Safety Contract if you have it signed
Convert to scientific notation
Calculations with Sig Figs and Rounding
Presentation transcript:

Dimensional Analysis Review AND SIGNIFICANT FIGURES

Dimensional Analysis Review The average household in the US uses 940 kWh/month. What is the average usage in Mcal/month?

Dimensional Analysis Review From Equation Sheet Metric Conversion From Equation Sheet Metric Conversion Given Goal

Dimensional Analysis Review A cube has an edge length of in. What is the volume of the cube in μL?

Dimensional Analysis Review What is the speed of light (c) in mi/hr? Round your answer to 4 sig figs. c = x 10 8 m/s