Ultimately, what causes movement?

• A. Distance
• B. Matter
• C. Force
• D. Time

Answer: (C)

Movement arises when a net force acts on an object, causing a change in its velocity. In practice, muscles or external pushes apply force, and when that force overcomes inertia and opposing forces like friction, the body begins to move and can speed up, slow down, or change direction. Distance and time describe how far and how long the movement occurs, but they are results of movement, not what causes it, while matter is simply what is being moved. If no net force acts, an object at rest stays at rest and a moving object continues at the same speed in the same direction until another force changes it.