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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?
Mass / Volume
100
The measurement of how much mass of a substance is contained in a given volume. (compactness)
What is the definition of Density?
100
Mass= 4.67g and volume =32.8mL. Find Density and say if it sinks or floats and why.
0.14g/mL. The object floats because it is less dense than water.
100
What can Density do when identified?
It can identify an unknown substance.
200
What is the density of an object that sinks in water?
Greater than 1.0g/mL
200
What is the formula for volume?
Mass / Density
200
The amount of space an object takes up.
What is the definition of Volume?
200
Density= 1.74g/mL Volume= 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. If using the displacement method- milliliters or liters
300
What is the density of an object the floats in water?
Less than 1.0g/mL
300
What is the formula for mass?
Density X Volume
300
The measurement of the amount of matter in an object.
What is the definition of Mass?
300
mass= 22.95g Volume= 15.45cm. Find density. Does it sink or float? Why?
1.49g/cm. The object sinks because it is more dense than water.
300
A measure of the force of gravity on you. (weight or mass)
What is the definition of Weight?
400
How many units must you put in your answer when finding the density? What are some examples of these units?
2 units (grams, milliliters, liters, centimeters cubed, etc)
400
An object has the Mass of 45.87 g and the Volume of 21.42 mL. Find the Density. Will it sink or float?
2.1414 g/mL It will sink because it is more dense than water.
400
If cube A has a density of 2.0 g/mL and cube B has a density of 3.0 g/mL, which cube is LESS compact?
Cube A
400
Mass= 41g Density= 3.2g/mL. Find the volume.
12.81mL.
400
Why is density important to understand?
To figure out if an object sinks or floats in water, & density is an important physical property of an element.
500
Find the density. Does it sink or float? Mass= 4.6 g Volume = 12.5 mL
0.368g/mL. It floats.
500
An object has the Density of 4.67 g/mL and Volume of 3.91 mL. What is the Mass?
18.2597 g.
500
An object has the Density of 12.36 g/mL and the Mass of 6.52 g. What is the Volume?
1.8957055 mL
500
Mass- 97kg Volume- 105L. Find the density. Does it sink or float? Why?
0.92 kg/L This object floats because the density is less than the density of water.
500
What kind of property of an object is the Mass?
A physical property.