Volume - Notes
1. Volume: The amount of space an object takes up.
2. Volume can be measured for solids, liquids, or gases.
3. To calculate the volume of a solid, use the formula
length x width x height (L x W x H)
4. The units used to measure the volume of a solid include cubic centimeters
(cm3), cubic inches (in3), cubic feet (ft3), cubic yards, or even cubic miles.
5. The term "cubic" refers to the 3 dimensions –
Length, width, and height – multiplied, to calculate volume.
6. Examples of solid volumes are:
a. the volume of a box or carton (cm3 or cubic inches)
b. the volume of soil, rock, or concrete in construction (cubic yards)
c. the amount of debris, rock, and dust (ejecta) from a volcanic eruption
7. Examples of the volumes of a gas are:
a. the capacity of your lungs (cubic liters)
b. the amount of natural gas used to heat your home (cfm – cubic feet / min)
c. cylinder displacement of an engine – cm3 or cc, liters or "litres,” or cubic
8. The units used to measure the volume of a liquid include cubic centimeters
(cm3 or cc, milliliters -- ml, liters, ounces, pints, quarts, and gallons)
9. Examples of liquid volumes are:
a. a 2 liter bottle of Pepsi
b. a 5 milliliter dosage of a medicine
c. 50 liters of gasoline
d. 1000 kiloliters of water to fill a pool
10. The volume of an object or substance is a physical property.
11. One milliliter of a liquid completely fills a cube measuring 1 cm on each side,
therefore, one milliliter = one cubic centimeter or (1 ml equals 1 cm3).
12. Liquid volume is measured using a graduated cylinder.
13. To read a graduated cylinder properly, the level of liquid should be observed
and measured at eye level.
14. In a graduated cylinder, the surface of a liquid appears to curve.
15. The apparent curved surface of a liquid in a graduated cylinder is called a
a. A meniscus is caused by capillary action of liquid molecules on the
smooth surface of the graduated cylinder.
b. The liquid rises slightly at the edges of its surface, creating the
c. To read the volume of a liquid in a graduated cylinder accurately, read
the low point of the meniscus.
d. Remember – eye level; low point