Final answer:
The statement is true; according to Newton's third law of motion, the action force is always equal to the corresponding reaction force in magnitude but opposite in direction, and these forces act on different bodies.
Step-by-step explanation:
The answer to the question is true. The action force is always equal in size (number of Newtons) to the corresponding reaction force, which is a direct consequence of Newton's third law of motion. Newton's third law states that for every action, there is an equal and opposite reaction, meaning that forces always come in pairs, with each force exerted by one body on another being matched by a force of the same magnitude but opposite direction exerted by the second body on the first.
Two important features to remember about Newton's third law are, firstly, the forces exerted (action and reaction) are equal in magnitude but opposite in direction, and secondly, these forces act on different bodies or systems; they do not cancel each other out because they are not acting on the same body. Hence, if one object exerts a force on a second object, the second object simultaneously exerts a force of equal magnitude but in the opposite direction on the first object, regardless of their respective masses.