The student knows concepts of motion evident in everyday life. They have also learned in Grade 6 that measurable changes in motion due to an applied force can be represented graphically. Students who have taken Integrated Physics and Chemistry have associated quantities such as momentum, acceleration, kinetic energy, and power with motion. Acceleration is defined as any change in motion and occurs when something speeds up, slows down, or changes direction. Any object that stands still or moves in a straight line at constant speed is in uniform motion.
Many students believe that constant speed requires a constant force to sustain motion.
In addition, some students believe that the amount of motion is proportional to an amount of force. That is, if an object is moving there must be force acting on it in the direction of the motion. However, this concept is not the focus of this Vista. If it does come up, clear up misconceptions. The notorious Kenna Matix, spy extraordinaire, has escaped again.