1. Amy is riding on a train. She wants to sit at the front of the train for a better view, so she gets up to change her seat. Just as she starts walking toward the front of the train, it pulls into a station and stops.
a. Describe Newton’s First Law of Motion.
b. Describe what happens to Amy when the train stops.

2.
a. How are weight and mass different?
b. Explain why an object’s weight is dependent upon where in the universe it is located.