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Measurements
Formulas
Terms Related to Density
Practice Problems
Key Points about Density
100

What is the density of water?

1.0g/mL

100

What is the formula for density?

Density = Mass / Volume

100

What is the definition of density?

The measurement of how much mass of a substance is contained in a given volume.

100
4.67g / 32.8mL. Find Density and say if it sinks or floats.
0.14g/mL. The object sinks.
100

How can we measurement the volume of an irregularly shaped object (like a rock)?

Displacement in water

200

What is the density of an object that sinks in water?

Greater than 1.0g/mL

200

What is the formula for volume?

Volume = Mass / Density 

200

What is the definition of volume?

The amount of space that a substance/object takes up. 

200
1.74g/mL X 63mL. Find the mass.
1.92g
200

When measuring the Volume of a solid object, what unit is it usually expressed in?

In cubic centimeters or meters.

300

What is the density of an object the floats in water?

Less than 1.0g/mL

300

What is the formula for mass?

Mass = Density X Volume

300

What is the definition of Mass?

The measurement of the amount of matter in an object.

300
22.95g / 15.45cm. Find density. Say if it sinks or floats.
1.49g/cm. The object sinks.
300

Why does ice float in water?

Ice is less dense than water. 
400

How does density relate the the Metric System of Units? 

Density uses units such as grams and kilograms for mass and m3, cm3, and milliliters for volume.

400

An object has a mass of 45.87 g and a volume of 21.42 mL. Find the density.

2.141 g/mL

400

What kind of substance property is density? Chemical or physical?

Physical Property

400
41g / 3.2g/mL. Find the volume.
12.81mL.
400

Why is density important to understand?

It explains why some things float and others sink.
500

An object has a mass of 4.6g and a volume of 12.5mL. Find the density. Does it sink or float?

0.37 g/mL. It floats.

500

An object has a density of 4.67 g/mL and volume of 3.91 mL. What is the mass in kg?

0.183 kg

500

An object has a density of 12.36 g/mL and a mass of 6.52 g. What is the volume in mL?

0.528 mL

500
97kg / 105L. Find the density. Say if it sinks or floats.
0.92. This object floats.
500

What kind of property is mass?

A physical property.