9. a decrease in an objects velocity results in a negative acceleration. true or false an increase in an objects velocity results in a positive acceleration. true or false what is acceleration? a. the rate at which velocity changes b. an objects speed multiples by mass c. the direction of motion d. the rate at which an objects position changes two charges objects are near each other, but they do not touch. which process is possible? a. charging happens only between objects that touch. b. charging by induction c. charging by friction d. charging by conduction