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Dimensional Analysis and Conversion factors

Dimensional Analysis and Conversion factors. 22.2 g. Any quantity we measure,( length , mass , volume … ) consists of a number and unit. If we are given a quantity in one type of unit, and we want another type of unit :. 22.2 g = ? lb. We must convert the units We can do this by using

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Dimensional Analysis and Conversion factors

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  1. Dimensional Analysis and Conversion factors

  2. 22.2 g Any quantity we measure,(length, mass, volume…) consists of a number and unit If we are given a quantity in one type of unit, and we want another type of unit : 22.2 g = ?lb We must convert the units • We can do this by using CONVERSION FACTORS

  3. A relationships between any quantities can be expressed by CONVERSION FACTORS

  4. A relationships between any quantities can be expressed by CONVERSION FACTORS

  5. Now, write down CONVERSION FACTORS for: 1.) yard and inch (1 yard = 36 inches) 2.) feet and meters (1 foot = 0.3048 metre) 3.) mile and kilometers (1 mile = 1.609 km) 4.) pounds and kilograms (2.2 lb = 1kg)

  6. EXAMPLE #1 Convert 21.5 inches to cm! Step 1:Writeconversion factors for inches and cm Step 2:Choose a conversion factor which will allow you to cancel units of a given quantity (inchesin our case) Step 3: Multiply, canceland checkthe units

  7. Convert 21.5 inches to cm! Step 1:Writeconversion factors for inches and cm

  8. Convert 21.5 inches to cm! Step 1:Writeconversion factors for inches and cm Step 2: Choose a conversion factor which will allow you to cancel units of a given quantity (inchesin our case)

  9. Convert 21.5 inches to cm! Step 2: Choose a conversion factor which will allow you to cancel units of a given quantity (inchesin our case) NO! 21.5 inches x YES! 21.5 inches x

  10. EXAMPLE #1 Convert 21.5 inches to cm! 1 step metric conversion

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