Density, Matter, and Heat

What is density?

• Density is the amount of matter in a space.

• Density is how compact or tightly pressed an object is

• Density is the mass per unit volume or the relationship between an object’s VOLUME and its MASS

• .Density can be described using all of the above statements.

The size of an object always determines its density.

• True

• False

A sample of pure silver has a density of 24 g/cm3. A scientist cuts the sample in half and then again into fourths. Choose the statement below that best describes what happens to the silver's density.

• The silver's density will be 12 g/cm3.

• The silver's density will be 36 g/cm3.

• The silver's density will remain the same.

• The silver's density will be 6 g/cm3.

One milliliter of water takes up the same amount of space as one cubic centimeter.

• True

• False

What is the formula for density?

• D = m x v

• D = v / m

• D = m / v

The mass of a book is 100 g and the volume is 25 cm3. The density of the book is _______ g/cm3.

A liquid has a mass of 16g and a volume of 8 mL, what is the density of this liquid?

• 2 g/mL

• 2 g/cm3

• 22 g/mL

• 22 g/cm3

The mass of a tennis ball is 20 g and the volume is 40 cm3. What is the density of the tennis ball?

• 60 g/mL

• 8 g/cm3

• 2 g/mL

• .5 g/cm3

The density of water is

• 1 g/cm

• 1 g/ml

• 1 g

• 1mL

If an object has a density GREATER than 1 g/mL, it will FLOAT.

• True

• False