Problem of the Day Write the conversion factor needed to convert the following… 1)172 ounces = _____ pounds Write the conversion factor needed to convert.

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Presentation transcript:

Problem of the Day Write the conversion factor needed to convert the following… 1)172 ounces = _____ pounds Write the conversion factor needed to convert the following… 2) 2.4 kL = _____ L

5-6: Dimensional Analysis Course 3 book; Section 5-3 Using Conversion Ratios to Convert Units of Measurement

Vocabulary Conversion Factor A fraction whose numerator and denominators represent the same quantity but use different units

To write a Conversion Ratio… I.Find the Ratio that can be multiplied with the original Ratio that will… cancel the original unit, while introducing the desired unit.

To solve problems using Conversion Ratios… I.Write the original units as a Ratio… II.Write the conversion Ratio, so the original unit cancels, through cross cancellation, while introducing the desired unit. III.Multiply the two Ratios… include the newly converted units in your answer. IV.Find the Unit Ratio of the newly Converted Ratio.

Examples Find the appropriate Conversion Ratio to each conversion. A)Feet to Yards Original unit is Feet; Converting to Yards

Examples Find the appropriate Conversion Ratio to each conversion. A)Feet to Yards Original unit is Feet; Converting to Yards

Examples Find the appropriate Conversion Ratio to each conversion. B)Pounds to Ounces Original unit is Pounds; converting to Ounces

Examples Find the appropriate Conversion Ratio to each conversion. B)Pounds to Ounces Original unit is Pounds; converting to Ounces

Examples C) The average American uses 580 pounds of paper per year. Find the number of pounds of paper the average American uses per month. Round answer to the nearest tenth.

Examples C) The average American uses 580 pounds of paper per year. Find the number of pounds of paper the average American uses per month. Round answer to the nearest tenth.

Examples C) The average American uses 580 pounds of paper per year. Find the number of pounds of paper the average American uses per month. Round answer to the nearest tenth.

Examples C) The average American uses 580 pounds of paper per year. Find the number of pounds of paper the average American uses per month. Round answer to the nearest tenth.

Examples D) A car traveled 60 miles in 2 hours. How many feet per second was the car traveling?

Examples D) A car traveled 60 miles in 2 hours. How many feet per second was the car traveling?

Examples D) A car traveled 60 miles in 2 hours. How many feet per second was the car traveling?

Examples D) A car traveled 60 miles in 2 hours. How many feet per second was the car traveling?

Examples D) A car traveled 60 miles in 2 hours. How many feet per second was the car traveling? 44 feet per second

Examples E) A strobe lamp can be used to measure the speed of an object. The lamp flashes every 1/100 of a second. A camera records the object moving 52 cm between flashes. How fast is the object moving in m/s?

Examples E) A strobe lamp can be used to measure the speed of an object. The lamp flashes every 1/100 of a second. A camera records the object moving 52 cm between flashes. How fast is the object moving in m/s?

Examples E) A strobe lamp can be used to measure the speed of an object. The lamp flashes every 1/100 of a second. A camera records the object moving 52 cm between flashes. How fast is the object moving in m/s?

F)Usain Bolt won the gold medal in the Beijing Olympics by running the 100-meter sprint in 9.69 seconds. How fast was Bolt running in Miles per Hour? (Hint: 1 meter is approximately 3.28 feet).

Approximately 23 miles per hour