what would happen to the moon phases of the moon revolves faster. Explain the effect that this would have on the moon phases?

The lunar cycle will last a shorter amount of time. It would make each phase last for a smaller amount of time.

prolly a beacuse the momentuem the car has increases while going down hill

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.