Density

Density

By Eliz Kozlow

Pre-test

Some text here about the topic of discussion

Multiple Choice

Density is defined as

• mass/volume.

• volume * mass.

• volume + mass.

• volume - mass.

Multiple Choice

What is the density of a substance that has a mass of 55.4 g and a volume of 10 cm3?

• 0.554 g/cm³

• 5 kg/l

• 5.54 g/cm³

• 554 g/cm³

Multiple Choice

Density measurements and weight measurements are, essentially, the same thing.

• True

• False

Multiple Choice

The amount of matter in an object

• volume

• mass

• density

• atom

Multiple Choice

The amount of mass per unit of volume of an object or substance

• volume

• mass

• density

• atom

Multiple Choice

One side of a cube is 2cm long.  What is the cube's volume?

• 2 cubic cm

• 6 cubic cm

• 4 cubic cm

• 8 cubic cm

Multiple Choice

What does density have to do with atoms?

• It describes how they float

• It describes how closely the atoms of an object are packed together

• It tells how many atoms an object has

Density

​§Density = amount of matter per unit volume

D = m/v  (g/cm3)

—Mass usually expressed in grams

—Volume usually expressed in cm3 or ml

density=m÷​v​

volume=m÷​d

mass=​density×volumn

​

​Some text here about the topic of discussion.

​​The “DMV” Triangle for Figuring Volume, Mass, and Density

What would take up more space???    A kilogram of feathers…..or a kilogram of steel??

​Feathers!  You will need many more feathers to reach 1 kg

​Density is the measure of the “compactness” of a material

nHow close the atoms or molecules are to each other

nMore than “heaviness”  - density includes how much space an object takes up!!

nAll substances have density including liquids, solids, and gases

Subject | Subject

“Compactness”

​- Stop

Continue on to Practice Measuring Density Worksheet

Post-test

Some text here about the topic of discussion

Multiple Choice

Density is defined as

• mass/volume.

• volume * mass.

• volume + mass.

• volume - mass.

Multiple Choice

What is the density of a substance that has a mass of 55.4 g and a volume of 10 cm3?

• 0.554 g/cm³

• 5 kg/l

• 5.54 g/cm³

• 554 g/cm³

Multiple Choice

Density measurements and weight measurements are, essentially, the same thing.

• True

• False

Multiple Choice

The amount of matter in an object

• volume

• mass

• density

• atom

Multiple Choice

The amount of mass per unit of volume of an object or substance

• volume

• mass

• density

• atom

Multiple Choice

One side of a cube is 2cm long.  What is the cube's volume?

• 2 cubic cm

• 6 cubic cm

• 4 cubic cm

• 8 cubic cm

Multiple Choice

What does density have to do with atoms?

• It describes how they float

• It describes how closely the atoms of an object are packed together

• It tells how many atoms an object has