density

A block of aluminum occupies a volume of 15.0 mL and weighs 45.0 g. What is its density?

• 3 g/mL

• 0.3333 g/mL

• 675 g/mL

• I have no idea

A sample of liquid has a mass of 300 g and occupies 50 mL in a graduated cylinder. What is the density?

• 15,000 g/mL

• .16667 g/mL

• 6 g/mL

• Yup, still no clue

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

Why do objects sink or float in H₂O?

• Because their densities are higher or lower than compared to water

• Because their densities are using gravity to pull down

• Because their densities are heavier or lighter

• Because their mass and volumes are equal

An irregularly shaped piece of gold was lowered into a graduated cylinder holding a volume of water equal to 17 ml. The height of the water rose to 20 ml. If the mass of the gold was 27 g, what was its density?

• 9 g/mL
• 10.5 g/mL
• 6.5 g/mL
• 8 g/mL

Which has the greatest volume?

• One on left

• One on right

• Both the same

• Volume cannot be determined

Which has the greatest density?

• A

• B

• C

• All the same density

Rocks sink because they are

• the same density as the water

• less dense than the water

• more dense than the water

• because they're round

If an object has a density of .6 g/mL and you put it into water, will it sink or float?  

• sink
• float