ECAT & MDCAT XI PHYSICS : Chapter 3 MOTION AND FORCE (test 1) Leave a Comment / By Afshan JAMAL / July 4, 2026 Welcome to your ECAT & MDCAT XI PHYSICS : Chapter 3 MOTION AND FORCE (test 1) The decrease in velocity per unit time is called: acceleration variable acceleration average acceleration retardation None None Previous Start Quiz Next Time's up