01:160:161 Chapter Notes - Chapter E.1-E.5: Metric System, Kilogram, Intensive And Extensive Properties
27 Sep 2018
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Chapter e- essentials: units, measurement, and problem solving. Quantification is the assignment of a number to some property of a substance or thing. The two most common unit systems are: metric system - used in most of the world, english system. The international system of units (si) is based on the metric system. The mass of an object is a measure of the quantity of matter within it, while the weight of an object is a measure of the gravitational pull on its matter. Another commonly used unit of mass is the gram. The second is defined as the duration of 9. 192,631,770 periods of radiation emitted from a transition in a cesium-133 atom. The temperature of a sample of matter is a measure of the amount of average kinetic energy-the energy due to motion- of the atoms or molecules that compose the matter.
