Density

An object with which of the following densities will float on water?

• 0.7 g/cm3

• 1.2 g/cm3

• 3.5 g/cm3

• 11.4 g/cm3

A block has a mass of 54g and a volume of 20cm3.  What is the density of the block?

• 74 g/cm3
• 1080 g/cm3
• 34 g/cm3
• 2.7 g/cm3

A can of Coke will sink in a bowl of water. A can of Diet Coke will float in a bowl of water. What does this tell you about the density of the Diet Coke?

• it is greater than 1

• it is less than 1

• it is equal to 1

• it is equal to -1

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

Vera finds a gold colored rock in a river. It has a mass of 9.65 grams and a volume of 0.5 cm3. What is the density of the rock?

• 10.15 g/cm3

• 19.3 g/cm3

• 9.15 g/cm3

• 4.825 g/cm3

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

• elasticity
• buoyancy
• density
• viscosity

The following liquids are poured together in a beaker: alcohol (density=0.79), corn syrup (density=1.38), water (density=1.0), and cooking oil (density=0.93).  Which of these liquids will sink to the bottom of the beaker?

• alcohol
• corn syrup
• water
• cooking oil

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

Will an object with a density of 0.999 sink or float in water?

• sink
• float