Volume
is the amount of space an object occupies.
The volume
of an object can be calculated using mathematical equations. The
volume of a cube can be found using the formula V=(side)x(side)x(side)
or by using a graduated cylinder to measure liquid displacement.
Case
I.
Finding volume geometrically.
What
is the volume of the metal cube shown here (to the nearest tenth
of a cm?
Note:
The side of the
cube is approximately 3.1 centimeters. How many inches does this
convert to (use 2.54 cm. = 1 inch)? A calculator is available to
the right.
Case
II. Measuring Volume using a graduated cylinder.
It is also
possible to find the volume of an object by measuring the volume
of water that it displaces.
The cube shown
above is lowered into a graduated cylinder containing water.
What
was the amount of water displaced by the object?
Before
After
Please enter your answer in the space provided. If you need
a calculator one is available. to the right.
Notice that
both methods give fairly accurate values for the volume of the cube.
Why are the volumes not exactly the same for the two methods used?
How
does the volume of a cube vary with the area of one of its surfaces?
With the length of one side of the cube?
Type in any
value for length and then click on one of the other boxes.
Please
continue to the next chapter!
Please
continue to the next chapter on density
