Density

Why do ice cubes float in a  glass of water?

• the ice cubes are more dense than the water
• the water is more dense than the ice cubes
• the water is more dense than the glass
• the ice is more dense than the glass

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

A scientist has four different liquids and pours them all into a bottle.  The silver liquid sinks to the bottom, the red liquid settles on top of the silver one, and the pink liquid stays at the surface. Which liquid has the smallest density?

• the pink liquid
• the silver liquid
• the red liquid
• the water

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

NGSS.MS-PS1-2

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

The density of Coach Kaether can be measured using which of these quantities?

• mass and weight

• mass and volume

• height and weight

• length and volume