I. Title: The Graphical Determination of Density
II. Introduction: Density is the quotient of mass and volume. Density does not depend on the size of the substance, but rather the composition. When the temperature of a substance increases, so does the volume. Mass, on the other hand, does not change when temperature changes. Density determines whether an object sinks or float.
III. Objective: The objective of the student is to utilize the Vernier caliper to measure the dimensions of provided samples and use graphical analysis to find the density of each of them. This experiment will also give the students an open discussion on design improvements to aid them in the accuracy of their results.
IV. Materials: The materials provided are 5 different size samples, a Vernier caliper, an electric scale, a small beaker, a graduated cylinder, and water.
V. Procedure: First, collect the samples from the teacher. Then, measure the mass of one of the samples with the electric scale. Using the Vernier caliper, measure the diameter and length of the sample. Don’t forget to record your data on your table and make sure to record accurate readings. Repeat these steps for the remaining four samples.
VI. Data Table
Trial
MASS
(grams)
LENGTH
(cm)
DIAMETER
(cm)
RADIUS
(cm)
AREA
(cm^2)
VOLUME
(cm^3)
DENSITY
(g/cm^3)
1
14.40 g
4.23 cm
1.25 cm
0.625 cm
1.23 cm^2
5.19 cm^3
2.77 g/cm^3
2
15.47 g
4.56 cm
1.34 cm
0.67 cm
1.4 cm^2
6.4 cm^3
2.4 g/cm^3
3
16.97 g
5.01 cm
1.36 cm
0.68 cm
1.5 cm^2
7.3 cm^3
2.3 g/cm^3
4
17.94 g
5.24 cm
1.36 cm
0.68 cm
1.5 cm^2
7.6 cm^3
2.4 g/cm^3
5
19.52 g
5.73 cm
1.36 cm
0.68 cm
1.5 cm^2
8.3 cm^3
2.4 g/cm^3
VII. Graph: (SEE GRAPH PAPER ON BACK)
VIII. Conclusion: By utilizing the Vernier caliper and electronic scale, my classmates and I measured the mass, diameter, length, radius, volume, area, and density of five samples of aluminum in different sizes. The process begins with using the scale...