Describing Motion
- Choose an origin and need to find position relative to that origin initially
- Need to know position at successive time intervals
- Need to know direction of movement
- Need to know how fast it's going
- Need a coordinate system
- How far it went
- Is it speeding up or slowing down
- Need to know total time and length of time interval
- Need to define all time intervals and physical quantities
- Need to include units of distance and time
