Physical Properties Density and Buoyancy: Definitions and units by Martha Marie Day, Ed.D., Anthony Carpi, Ph.D. Reading Quiz Teach with this 1. Density is defined as mass/volume. volume * mass. volume + mass. volume - mass. 2. What is the density of a substance that has a mass of 55.4 g and a volume of 10 cm3? 0.554 g/cm3 5 kg/l 5.54 g/cm3 554 g/cm3 3. An object will float in a liquid if it is cooled to the same temperature. heated to the same temperature. less dense than the liquid. more dense than the liquid. 4. What is the density of water? 0.11g/cm3 0.1g/cm3 1.0g/cm3 2g/cm3 5. Density measurements and weight measurements are, essentially, the same thing. true false 6. How are density and buoyancy related? Buoyancy affects the density of an object. Buoyancy is not affected by density. Objects that are denser than the material that surrounds them will be buoyant. Objects that are less dense that the material that surrounds them will be buoyant. 7. A submarine is able to move throughout the water column by altering its density. altering its mass. altering its volume. altering its weight. 8. When two materials that have different densities, like oil and water, encounter one another, they will exchange densities. mix uniformly. repel one another. separate according to their densities. Score Quiz
