To practice Problem-Solving Strategy 1.2 Unit Conversions. A gallon of water in

Question

To practice Problem-Solving Strategy 1.2 Unit Conversions. A gallon of water in the United States weighs about 8.33 lb . In other words, the density of water is 8.33 lb/gal. What is the density of water in kg/m3? What is the density of water in g/cm3? The same physical quantity, such as density, can be reported using different units. Above, you found that water has a density of 1000 kg/m3 = 1 g/cm3. Because the density of water must be the same regardless of what units you use to measure it, you can conclude that an object whose density is 1 kg/m3 must be less dense than water. In other words, 1 kg/m3 is less than 1 g/cm3. If you had three different objects with densities of 1 kg/m3 ,1 g/m3 , and 1 kg/mm3 , which object would be the most dense?

Explanation / Answer

most to least 3,1,2 i.e 1 kg/mm3 > 1 kg/m3>1 gm/m3

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