Compare Aristotle's concept of motion and inertia with the concepts of motion and falling bodies introduced by Galileo. Calculate the density of an object given the mass and volume. In addition, given any two of the three quantities (i.e., mass, volume, or density), calculate the unknown quantity.

Explain the difference between mass and weight. Describe an object in free fall in terms of displacement, velocity, and acceleration as functions of time. Analyze graphs of displacement vs. time and velocity vs. time that describe the motion of an object. Alternatively, given a description of the motion, make a simple sketch of the graph that represents the motion.