Today is
Mass Volume Density Quiz (level 2)
 1. Which of these is not an accurate unit for mass? a) gram b) slug c) pound d) kilogram2. Four immiscible liquids are mixed and form four layers. From top to bottom what will be observed? a) corn oil, carbon tetrachloride, water, mercury b) carbon tetrachloride, corn oil, water, mercury c) corn oil, water, carbon tetrachloride, mercury d) corn oil, water, mercury, carbon tetrachloride 3. An 8 oz. empty glass is filled with ice. It has a mass of 254 grams. After the ice melts the total mass would be a) approximately 260 grams b) 254 grams c) approximately 250 grams d) much greater than 260 grams 4. A volume of 50 cu.cm. of dry sand is added to 30 cu. cm. of water for a total volume of 60 cu cm. What is the volume of water that goes into the air spaces? 50 cu.cm. 60 cu. cm, 10 cu. cm. 20 cu. cm. 5. A large piece of rock salt is added to a test tube containing water. The level of water is marked and the test tube is sealed. After all the rock salt dissolves it is noted that the level of liquid is below the original marked level. What conclusion(s) can we draw from this experiment? 1) The mass of the system has decreased. 2) When salt is added to water a chemical change occurs 3) The density of salt water is greater than the density of pure water 4) the volume of the system has decreased as a result of a physical change. a) 1 only is true b) 2 and 3 are true c) 3 and 4 are true d) 1,2, and 3 are true 6. When the space shuttle circles the earth objects within the ship become weightless. The most likely reason for this is because a) The shuttle is actually falling back to earth while circling the earth, so all objects within the ship are in free-fall. b) The shuttle is so far away from earth that the effect of gravity is neglible. c) There is no air d) none of the above7. Liquid water is more dense than ice because- a) A liquid H 20 molecule has more mass than an ice H 20 molecule. b) A chemical change occurs when ice melts that causes the mass of water to increase c) When ice melts there is an increase in the amount of water molecules d) there are a greater number of H 20 molecule per unit of volume in liquid water than ice. 8. The density of water in SI units (International System of Units) is: a) 1 pound/cu. ft b) 1000 g/1000 ml. c) 1 kg/L d) 1 g/cm3 9. A graduated cylinder is filled with 50cc. of water. A glass stopper is dropped into the graduated cylinder. The volume now reads 65.4 cc. If we know glass has a density of 2.5 g/cm3, what would we expect the mass of the stopper to be closest to? a) 38.5 grams b) 20 grams c) 26.7 grams d) 42 grams 10. The specific gravity of a substance is the ratio of the mass of a substance to the mass of an equal volume of water. What is the specific gravity of glass? a) 2.5 grams b) 1.0 b) 2.5 d) 2.0 grams
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