Density (PS)

Density (PS)

Physical Science - Hendley

Density

Multiple Select

Which variables are needed to calculate density?

• length

• mass

• temperature

• volume

Multiple Choice

Which of the following is the correct formula for density?

• $$D=\frac{m}{V}$$

• $$D=m\times V$$

• $$D=\frac{V}{m}$$

• $$D=m^V$$

Multiple Choice

Which of these boxes is more dense?

• Box A

• Box B

• They are the same

• Not enough information

Density and Floating

• The density of liquid water is 1.00 g/mL

• Anything with a density higher than 1.00 g/mL will SINK in water.

• Anything with a density less than 1.00 g/mL will FLOAT in water.

Multiple Choice

When will objects float?

• If it has a density of less than 1 g/mL

• If it has a density of more than 1 g/mL

• It has a density equal exactly to 1 g/mL

• None of the above

Watch the Video Clip on the Next Slide

Steve Spangler: Float or Sink?

Multiple Choice

Which can was more likely to sink?

• The regular soda

• The diet soda

• Only light colored sodas

• Not predictable.

Multiple Choice

Which statement is true?

• Regular cola cans sink because there's lots of artificial sweetener in them.

• Regular cola cans sink because there's lots of sugar in them.

• Diet cola cans sink because there's lots of artificial sweetener in them.

• Diet cola cans sink because there's lots of sugar in them.

Multiple Choice

Why does sugar cause the regular soda can to sink?

• Sugar is heavy.

• There's LOTS of sugar in soda.

• There's only a little bit of sugar so it's mostly water.

• Sugar has more gravity.

Solving density problems

Multiple Choice

A rock has a mass of 50 grams and a volume of 30 cm³. What is the density of the rock?

• 0.6 g/cm³

• 80 g/cm³

• 1500 g/cm³

• 1.67 g/cm³

Multiple Choice

Which liquid is the most dense?

• 1

• 2

• 3

• 4

Multiple Choice

What is the density of water?

• 10 g/mL

• 1 g/mL

• 0.1 g/mL

• 100 g/mL

Multiple Choice

Find the mass of a container that has a volume of

380 cm³ and a density of 0.97 g/cm³.

• 368.6 g

• 0.0026 g

• 391.8 g

• None of these

Multiple Choice

Why does a bob float on water?

• Its density is less than 1.0 g/mL

• Its density is more than 1.0 g/mL

• It has a density of exactly 1.0 g/mL

• Not enough information

Multiple Choice

Copper has a density of 8.96 g/mL. If a penny is solid copper (it isn't) and has a mass of 3.2 grams, what volume does the penny have?

• 0.36 mL

• 2.8 mL

• 5.8 mL

• 12 mL

Multiple Choice

Which liquid is the least dense?

• 1

• 2

• 3

• 4

Multiple Choice

In this image, a British pound coin is floating on liquid mercury. What can we determine?

• Mercury is more dense than the coin.

• Mercury is less dense than the coin.

• Mercury has the same density as the coin.

• Not Enough Information.