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Density Test

QuestionAnswer
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