||ways to make things move, what causes them to stop, and what causes a change of speed, or change of direction.
||the strength of a push or pull affects the change in an object?s motion (e.g., how a big or small push affects how high a swing rises).
||some forces produce motion without objects touching (e.g., magnetic force on nails).
||describe the motion of an object by measuring its change of position over a period of time.
||some forces act on contact and other forces act at a distance (e.g., a person pushing a rock versus gravity acting on a rock).
||things move in different ways (e.g., straight line, vibration, circular).
||the position and motion of an object (direction or speed) are changed by pushing or pulling it.