convert unit rates dimensional analysis · 11/12/2015  · set it up as a unit ratio convert feet...

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Convert Unit Rates and Dimensional Analysis 1. How are pounds per gallon and kilograms per liter alike? How are they different? **2. How would you convert 10 miles per hour to meters per second?

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Page 1: Convert Unit Rates Dimensional Analysis · 11/12/2015  · Set it up as a unit ratio Convert feet to inches and multiply. Divide out common units Simplify 120 in 1 s 120 in/sec Ex

Convert Unit Ratesand

Dimensional Analysis

1. How are pounds per gallon and kilograms per liter alike?  How are they different?

**2.  How would you convert 10 miles per hour to meters per second?

Page 2: Convert Unit Rates Dimensional Analysis · 11/12/2015  · Set it up as a unit ratio Convert feet to inches and multiply. Divide out common units Simplify 120 in 1 s 120 in/sec Ex

Let's Review:  Basis Units of Measurelengthcapacity

mass/weight

Can you give an example of a unit ratio?

Table of Conversions between Customary and Metric Systems

Page 3: Convert Unit Rates Dimensional Analysis · 11/12/2015  · Set it up as a unit ratio Convert feet to inches and multiply. Divide out common units Simplify 120 in 1 s 120 in/sec Ex

What is Dimensional Analysis?

Dimensional Analysis is the process of including units of measurement when computing.

What is Dimensional Analysis?

Dimensional Analysis is the process of including units of measurement when computing.

Page 4: Convert Unit Rates Dimensional Analysis · 11/12/2015  · Set it up as a unit ratio Convert feet to inches and multiply. Divide out common units Simplify 120 in 1 s 120 in/sec Ex

How do you convert rates?You can convert one rate to an equivalent rate by using multiplying by a unit ratio or its reciprocal. Use the units in your computation. 

Set it up as a unit ratio

Convert feet to inches and multiply.

Divide out common units

Simplify 120 in   1 s

120 in/sec

Ex. 1

How do you convert rates?You can convert one rate to an equivalent rate by using multiplying by a unit ratio or its reciprocal. Use the units in your computation. 

Set it up as a unit ratio

Convert feet to inches and multiply.

Divide out common units

Simplify 120 in   1 s

120 in/sec

Page 5: Convert Unit Rates Dimensional Analysis · 11/12/2015  · Set it up as a unit ratio Convert feet to inches and multiply. Divide out common units Simplify 120 in 1 s 120 in/sec Ex

Dimensional Analysis • Converting one thing to another.  • The process of including units of measure as factors when you compute.

Ex. 2

Dimensional Analysis • Converting one thing to another.  • The process of including units of measure as factors when you compute.

Page 6: Convert Unit Rates Dimensional Analysis · 11/12/2015  · Set it up as a unit ratio Convert feet to inches and multiply. Divide out common units Simplify 120 in 1 s 120 in/sec Ex

A gull can fly at a speed of 22 miles per hour.  About how many feet per hour can the gull fly?

3.

A gull can fly at a speed of 22 miles per hour.  About how many feet per hour can the gull fly?

3.

Page 7: Convert Unit Rates Dimensional Analysis · 11/12/2015  · Set it up as a unit ratio Convert feet to inches and multiply. Divide out common units Simplify 120 in 1 s 120 in/sec Ex

The Shinkansen passenger train of Japan travels at a rate of 300 kilometers per hour.  How many meters per hour is this speed?(Hint: King Henry Drinks ____ Delicious Chocolate Milk)

4.

The Shinkansen passenger train of Japan travels at a rate of 300 kilometers per hour.  How many meters per hour is this speed?(Hint: King Henry Drinks ____ Delicious Chocolate Milk)

4.

Page 8: Convert Unit Rates Dimensional Analysis · 11/12/2015  · Set it up as a unit ratio Convert feet to inches and multiply. Divide out common units Simplify 120 in 1 s 120 in/sec Ex

Kelly runs at a speed of 9 miles per hour.  How many miles per second is her speed?

5.

Kelly runs at a speed of 9 miles per hour.  How many miles per second is her speed?

5.

Page 9: Convert Unit Rates Dimensional Analysis · 11/12/2015  · Set it up as a unit ratio Convert feet to inches and multiply. Divide out common units Simplify 120 in 1 s 120 in/sec Ex

The average teenager spends $1742 per year on fashion related items.  How much is this per week?

6.

The average teenager spends $1742 per year on fashion related items.  How much is this per week?

6.