Density & Pressure (College Board AP® Physics 1: Algebra-Based): Exam Questions

Figure 1

A group of students are given a cylindrical container half filled with a liquid of unknown density . The students have access to an additional container with more of the same liquid, meter sticks, and a pressure sensor. They do not have access to a scale.

The students are asked to take measurements to create a graph that could be used to determine the density of the liquid. Describe an experimental procedure the students could use to collect the data needed to determine the density of the liquid. Include any steps necessary to reduce experimental uncertainty. If needed, you may include a simple diagram of the setup with your procedure.

Describe how the data collected in part a) could be plotted to create a linear graph and how that graph would be analyzed to determine the density of the liquid.

A group of students are given a beaker with a spout and several irregular objects made from the same material. They also have access to a ruler, a scale, a measuring cylinder and a supply of water.

Students are asked to take measurements to create a graph that could be used to determine the density of the material.

Describe an experimental procedure the students could use to collect the data needed to determine the density of the object. Include any steps necessary to reduce experimental uncertainty. If needed, you may include a simple diagram of the setup with your procedure.

Describe how the data collected in part a) could be plotted to create a linear graph and how that graph would be analyzed to determine the density of the material.