Ratios and Proportions Notes-Part 7

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Presentation transcript:

Ratios and Proportions Notes-Part 7

Conversion Factors A conversion factor is the ratio of two equivalent measurements, expressed with different units, and often different numbers, which are used to change the for m of a value to an equivalent form with different units.

Conversion Factors What is necessary for a conversion factor? Two measurements with different units that are equal to the same thing.

Examples

Conversion Factors Using conversion factors to solve a problem is called dimensional analysis.

Solve (Without a Calculator)

Solve (Without a Calculator)

NOTE! Always check your units. The units that you should have left should match what the question is asking!

Try These: Mr. Moore can listen to 34 songs while driving 120 miles in his hot red Ferrari. How many miles would he have to drive to hear 40 songs?

Try These: A swordfish can swim at a rate of 60 miles per hour. How many feet per hour is this?

Try These: Mrs. VanHeusden walks at a speed of 7 feet per second. How many feet per hour is this?

Try These: The average speed of one team in a relay race is about 10 miles per hour. What is this speed in feet per second.