"Free fall: Aristotle vs. Galileo"

1. Considering only the fall of relatively heavy objects, what is the basic prediction regarding their fall just under the action of gravity? How does weight affect their motion during their fall? Provide a short answer.

2. How does the prediction change when we consider free fall at the surface of a different planet? Make sure to contrast your answer with the statements from question 1.

3. Sketch the graphs of position, velocity and acceleration against time for an object on free fall (in the absence of air resistance). Use a system of coordinates pointing up and make sure that the three graphs are actually associated to the same motion.