Forces
Force- A push or pull
Motion- Any movement or change in position or time.
Net Force- The overall force acting on an object.
Energy- The ability to do work.
Balanced Force- Two forces acting in opposite directions on an object, and equal in size. The object stay at rest/ does not move.
Unbalanced Force- Two forces acting on an object are not equal in size. The object moves.
Friction- The force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
Speed- The rate at which an object covers distance.
Direction- A course along which someone or something moves.