1. Prior to this week's lecture, what associations did you have with the word "force"? How did they compare with the physical concept of force?
2. Watch this short YouTube video of a coin dropped in a cup(Links to an external site.) https://www.youtube.com/watch?v=qq1Whusk8No and then answer the following question. What can you say about Newton's 1st Law? What questions do you have about inertia? What ways do you see inertia acting in your own life?
3. A cartoon shows the toupee coming off the head of an elevator passenger when the elevator rapidly stops during an upward ride. Can this really happen without the person being tied to the floor of the elevator? Explain your answer.