Knowing that the moon has less mass than earth, what do you think happens to objects on the moon? a. they fall at the same rate as they do on the earth. b. they fall faster on the moon. c. they fall slower on the moon. d. they don't fall on the moon.

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9