Dimensional Analysis Aka Factor-Label Method

Dimensional Analysis Aka Factor-Label Method Aka Unit Factor Method

Ms. L abbreviates it ... Dimensional analysis = dim. Anal. (go ahead, this is your only chance to laugh)‏

Dimensional analysis = dim. Anal.

(go ahead, this is your only chance to laugh)‏

Guarantee I guarantee ... If you end up with the right units, then you will also end up with the right number* to go with it. Guaranteed! * unless of course you type the wrong numbers in to your calculator.

I guarantee ...

If you end up with the right units, then you will also end up with the right number* to go with it.

Guaranteed!

* unless of course you type the wrong numbers in to your calculator.

Two Important Things 1. the units on the number

1. the units on the number

Two Important Things 1. the units on the number 2. any conversion factors Example: 1 inch = 2.54 cm

1. the units on the number

2. any conversion factors Example: 1 inch = 2.54 cm

Conversion Factor = Fraction = Ratio 1 inch = 2.54 cm can be written as a fraction

1 inch = 2.54 cm can be written as a fraction

Conversion Factor = Fraction = Ratio 1 inch = 2.54 cm can be written as a fraction Either side can go on top

1 inch = 2.54 cm can be written as a fraction

Either side can go on top

Conversion Factor = Fraction = Ratio 1 inch = 2.54 cm can be written as a fraction Either side can go on top 1 in/2.54 cm

1 inch = 2.54 cm can be written as a fraction

Either side can go on top

1 in/2.54 cm

Conversion Factor = Fraction = Ratio 1 inch = 2.54 cm can be written as a fraction Either side can go on top 1 in/2.54 cm 2.54 cm / 1 in

1 inch = 2.54 cm can be written as a fraction

Either side can go on top

1 in/2.54 cm

2.54 cm / 1 in

Example How many inches are in 6.00 cm?

How many inches are in 6.00 cm?

Example 2 How many seconds are in 2.0 years?

How many seconds are in 2.0 years?