Density (Mr. Langer)

Why do ice cubes float in a glass of water?

• the ice cubes are more dense than the water

• the ice cubes are less dense than the water

• the water is more dense than the glass

• the ice is more dense than the glass

Which liquid is the least dense?

• oil
• water
• syrup 
• plastic bottle

Tags

NGSS.5-PS1-3

Which property of matter is determined by dividing its mass by its volume?

• elasticity
• buoyancy
• density
• viscosity

Mercury is a metal that is liquid at room temperature and has a density of 13.5 g/cm3.  Which of these metals would sink below the mercury if dropped into a container of mercury?

• gold (density=19.3 g/cm3)
• lead (density=11.4 g/cm3)
• iron (density=7.9g/cm3)
• aluminum (density=2.7g/cm3)

A brick sinks in water while a wooden block of the same size floats.  This is because the brick has a

• lower volume than the wooden block
• lower density than the wooden block
• higher volume than the wooden block
• higher density than the wooden block

What is the density of a liquid that has a mass of 27g and a volume of 30ml?

• 0.9 g/ml
• 3 g/ml
• 57 g/ml
• 810 g/ml

What is the density of a substance that has a mass of 30g and a volume of 6 liters?

• 24 g/l
• 5 g/l
• 36 g/l
• 180 g/l

Tags

CCSS.HSG.MG.A.2

A piece of copper has a mass of 89g and a volume of 10 cm3.  What would be the density of the copper?

• 0.89 g/cm3
• 89 g/cm3
• 8.9 g/cm3
• 890 g/cm3

Tags

CCSS.HSG.MG.A.2

Helium balloons rise on earth because

• helium is less dense than air
• helium is more dense than air
• helium is cooler than air
• helium is warmer than air

True or False:  The density of a specific type of material never changes.  

• True
• False