Discussion Questions: Microgravity

What does the term "microgravity" mean?
How would you explain the apparent lack of gravity in videos of astronauts on the space shuttle or space station?
When these students dropped various objects in motion from their "drop tower," what changes in motion did they observe? How did they explain these changes? What explanations or questions do you have?
Do you agree with Tiana's explanation for the behavior of the pendulum in microgravity? Why or why not?
Have you ever experienced weightlessness for a short time? What were the conditions? What did it feel like?