Dimensional Analysis Contents: Handy things to know Ways to convert Whiteboard practice.

Slides:

Advertisements

Similar presentations

Warm up True or False = 1 Explain Can you think of other ways to make 1 using a fraction bar?

Advertisements

- Convert a given result from one system of units to another

Write these down while you wait: 1 hr = 60 min = 3600 sec 1 km = 1000 m .6214 mile 1 mile = 5280 ft = 1760 yards  1609 m 1 m  ft 1 yard = 3 feet.

Write these down while you wait:

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.

Dimensional Analysis In dimensional analysis always ask three questions: What data are we given? What quantity do we need? What conversion factors are.

Warm Up Multiply. Write answers in simplest form:

EXAM 1 Study Aids or… Think, Multiply, Divide, Conquer.

Math on the Mind 10.75¢/oz. 425 yards Solve.

Big Hint Start a reference sheet for conversion factors: –Length; 12 inches = 1 foot, 3 feet = yard, 1,760 yds = 5,280 ft = 1 mile 10 mm = 1 cm, 100 cm.

Dimensional Analysis DHS Chemistry ferrer.

Dimensional Analysis 1 foot = 12 inches1 mile = 5280 ft 1000 mL = 1 L4 quarts = 1 gal Dimension Analysis makes use of equivalent statements. What are some.

Measuring Matter Chemistry is the study of matter and all its changes.

Ratios, Rates and Unit Rates

Chapter 4.  List several useful problem solving skills  Deductive reasoning Deductive  Inductive reasoning Inductive  A three step problem solving.

Conversions 8th Grade Math.

Units Dimensional Analysis The method is in the units Let the units do the walking.

Linear Kinematics - Speed Contents: Definition of speed General caveats Speed Example | WhiteboardWhiteboard.

Notes on Motion III How Fast, How Far & How Long vdt.

1 Chapter 3 Problem Solving. 2 Word Problems n The laboratory does not give you numbers already plugged into a formula. n You have to decide how to get.

Distance Speed and Time Calculating Speed Hrs and Min Calculating Distance Speed Distance or Time : Which Operation Hrs and Min Calculating Time Hrs and.

Let the units work for you!. Step 1: Write down the unit you need for your answer on the right side of your paper Step 2: Write down the unit you are.

Dimensional Analysis. Measurement Ratios In order to use dimensional analysis, you have to understand that you need to use ratios that have a value of.

Write these down while you wait: 1 hr = 60 min = 3600 sec 1 km = 1000 m .6214 mile 1 mile = 5280 ft = 1760 yards  1609 m 1 m  ft 1 yard = 3 feet.

ALGEBRA READINESS LESSON 6-3 Warm Up Lesson 6-3 Warm-Up.

ALGEBRA READINESS LESSON 6-3 Warm Up Lesson 6-3 Warm-Up.

TOC: Speed= Distance/Time 11/9/2015

Dimensional Analysis. Imagine This! You’re driving along a highway in Mexico when you notice this sign What should your speed be in miles per hour?

ALGEBRA 1 Lesson 2-4 Warm-Up. ALGEBRA 1 “Ratios and Proportions” (2-4) What is a “ratio”? What is a “rate”? What is a “unit rate”? ratio: a comparison.

Dimensional Analysis Math Made Manageable collegechemistry.batcave.net.

5.7 CONVERTING UNITS LO: CONVERT BETWEEN METRIC AND IMPERIAL UNITS OF MEASURE.

Linear Kinematics - Speed Contents: Definition of speed General caveats Speed Example | WhiteboardWhiteboard.

X = Unit you want to change Unit you are changing into Conversion Factor 1.Start with the unit you want to change. 2.Multiply it by a blank fraction. 3.The.

or * * P =22 in P =40 cm

Unit Conversions. A physical quantity must include: Number + Unit.

Motion. Motion terms and their definitions: position:distance and direction from a reference point motion:change of position over a time interval example:

Unit you are changing into

1-3 Scientific Notation or Exponential Notation (Section 2. 1, p

Dimensional Analysis Contents:

How Fast, How Far & How Long

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

Chapter 3 Problem Solving.

Unit 1 notes… Dimensional Analysis

On July 23, 1983, Air Canada Flight 143, a Boeing 767 jetliner, ran out of fuel at an altitude of 12,500 metres (41,000 ft)

Dimensional Analysis Problems

Double Units Domino Conversion

2.6 – NOTES Dimensional Analysis

Apply Properties of Real Numbers

Unit 4 – Lesson #1 Dimensional analysis

Speed and Velocity.

Starter 10/7-8 reference 2 units W (or -2) 2 units W (or -2) 8 units

Problem Solving in Chemistry

N2 – Dimensional Analysis

Chapter 3 Problem Solving.

Write these down while you wait:

Speed, Distance, Time Calculations

DIMENSIONAL ANALYSIS PROBLEMS - REVIEW

Clear off desk and get out something to write with

An object travels 40 miles in 2 hrs. Calculate its speed?

1. v = 55 km/hr t = s d = ? d = v t ( car is moving at constant speed)

Dimensional Analysis (aka Factor-Label)

Advanced Metric Conversion Notes

Ch. 4 Problem Solving in Chemistry

Write these down while you wait:

Unit 1- lecture 5 Dimensional analysis

Unit 1- lecture 5 Dimensional analysis

Converting derived units.

Linear Kinematics - Speed

Presentation transcript:

Dimensional Analysis Contents: Handy things to know Ways to convert Whiteboard practice

Handy things to know: TOC 1 hr = 60 min = 3600 sec 1 km = 1000 m .6214 mile 1 mile = 5280 ft = 1760 yards  1610 m 1 m  ft 1 yard = 3 feet Shortcuts: 1 m/s = 3.6 km/hr  mph, 1 mph  1.47 f/s ( …) 1 f/s .682 mph ( …)

Ways to convert units: TOC 1.Unit cancellation 2.Calculator’s built in (TI 85/86) 3.Conversion factors 4.Google Unit cancellation: 30. mph to ft/s: 30. mi(5280 ft)( 1 hr ) hr ( 1 mi )(3600 s) = 44 f/s (note the units canceling) Conversion factor: 30. mph to ft/s: (1 mph = 1.47 f/s) 30. mph x (1.47) = 44.1 = 44 ft/s (slightly off - what’s the “real” conversion factor?) Google: Type 30. mph in ft/s into the search bar Calculator (TI 85/86) 2 nd CONV, MORE, MORE, SPEED, 30 mi/hr > ft/s

Whiteboards: Conversions 11 | 2 | 3 | 4 | TOC

Convert 32 mile/hour to feet/second 5280 ft = 1 mi 3600 s = 1 hr 32 mi(5280 ft)( 1 hr ) = hr ( 1 mi )(3600 s) 47 f/s (2 sig figs) 47 f/s W

Convert 88.0 feet/second to mph 5280 ft = 1 mi 3600 s = 1 hr 88 ft( 1 mi )(3600 s) = 60 mph s (5280 ft)( 1 hr ) 60.0 mph W

Convert 27.2 m/s to km/hr 1000 m = 1 km 3600 s = 1 hr 27.2 m ( 1 km )(3600 s) = km/hr s (1000 m)( 1 hr ) 97.9 km/hr W

Convert 110. km/hr to m/s 1000 m = 1 km 3600 s = 1 hr 110 km (1000 m)( 1 hr ) = m/s hr ( 1 km )(3600 s) 30.6 m/s W

Convert 110. km/hr to mph 1 km .6214 mile 3600 s = 1 hr ?? 110 km (.6214 mi) = mph hr ( 1 km ) 68.4 mph W