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Density Test
| Question | Answer |
|---|---|
| The formula for density is | m/V |
| Density is a measure of the amount of mass in a given ____ of a substance. | volume |
| As mass decreases, density will____. | decrease |
| The density of pure water is_____. | 1.00 g/cm3 |
| An object that is less dense than the liquid it is placed into will ______. | float |
| A hot air balloon rises in the air when it is _________. | less dense than the surround air |
| Saltwater is ____ dense than fresh water because of its greater mass. | more |
| A block that has a density of 3.40 g/cm3 is___________dense than water. | more |
| As the volume of a substance decreases, its density does what? | increases |
| A substance that has a density of 0.96 g/cm3 will ___________ in water. | float |
| An increase in temperature causes density to_____________. | decrease |
| Ships are able to float because their overall density is __________ than water. | less |
| Boats and ships can float because they contain a great deal of ______. | air |
| Pure gold has a density of 19.3 g/cm3. Pure water would _________ if poured on the gold. | float |
| Volume is the amount of ___________ something takes up. | space |
| The amount of matter a substance is made of is its ____________. | mass |
| Density is a property of pure substances that can be used to help identify them. True or false | true |
| Air is a ___________, not a pure substance. | mixture |
| Mixtures, like pure substances, have a density that doesn't change. True or false. | false |
| A gold ring has a mass of 18.9 g and a volume of 1.12 mL. What is the density of gold? | 16.88 g/cm3 |
| Ice float on water because it is ________. | less dense than water |
| A graduated cylinder contains 15.0 mL of water. A marble is added to the water that causes the water level to rise to 30.0 mL. The marble has a mass of 30 g. The rock has a density of_________. | 2.00 g/cm3 |
| The more packed in the molecules of a substance are, the ________ its density. | greater |
| Small things that feel heavy are very dense. True or False | True |
| Styrofoam is very dense material. True or False | False |
| A kilometer is equal to ____ meters. | 1000 |
| 1 cm3 = 1 mL True or False | True |
| 1 gram is made of 1000 mg. True or False | true |
| As a substance gets colder, its atoms and molecules speed up and spread out. True or False | False |
Created by:
PBHS Physical Science Harris