Density

What is the formula for density?

• density = mass x volume (d = mV)

• density = mass / volume (d = m/V)

• density = mass + volume (d = m + V)

Jack has a rock. The rock has a mass of 14 g and a volume of 2.0 cm³. What is the density of the rock?

• 7 mL

• 28 g/cm³

• 7.0 g/cm³

Frank has an eraser. It has a mass of 4.4 g, and a volume of 2.0 cm³. What is its density?

• 8.0 g/cm³

• 2.2 g/cm³

• 1/2 g/cm³

Why do some substances float on water?

• They are warmer than water

• They are denser than water

• They are less dense than water

Will a spoon sink or float in water?

• Sink

• Float

Will keys sink or float in water

• Sink

• Float

What units can be used to express density?

• g/mL

• grams

• milliliters

If an object has a density of 0.6 g/mL and you put it into water with a density of 1.0 g/mL, will the object sink or float?

• Sinks

• Floats

If an object has a density of 3.6 g/mL and you put it into water with a density of 1.00 g/mL, will it sink or float?

• Sinks

• Floats

What units are used to measure mass?

• g/cm³

• cm³

• g