An object traveling at a constant speed but with a changing direction is accelerating. a. True b. False

True, it is still moving. 

Strange as it may seem, that's true. (choice 'a'.) "Acceleration" doesn't mean "speeding up".  It means ANY change in the speed or direction of motion.  So a car with the brakes applied and slowing down, and a point on the rim of a bicycle wheel that's turning at a constant rate, are both accelerating.