CHY 123 Chapter 1: CHY-123 Chapter 1
Document Summary
Mass is mass, 75 kg on earth 75g on earth: an inherent property which is gravity independent. Density which will float on top of another (oil will float atop water, thus, oil has a lower density then water) 1ml of water will have a mass of 1g. Accuracy: how close to the true value a given measurement is. Precision: how well a number of independent measurements agree with one another. Ex: average weight will be 100g for two bushels of apples. First bushel, all the weights stayed around the 100g. In the second bushel you had more variability in the second bushel. Much greater variability in the second bushel, though it"s the same average, therefore, less precision. All matter (anything that has mass and occupies space can be classified by its state and its properties. (solid, liquids, and gasses) Energy within will be greater kinetic energy compared to solid. Heat will break the bond when turning into the gas state.