What is the difference between static and dynamic wheel unbalance?

1. Static unbalance occurs when the vehicle is parked; dynamic occurs when moving
2. Static unbalance causes wheel hop (up-and-down vibration); dynamic unbalance causes wheel shimmy (side-to-side vibration)
3. Static unbalance is corrected with steel weights; dynamic is corrected by rotating tires
4. Static unbalance affects FWD cars; dynamic unbalance affects RWD cars