AFOQT Practice Test

The correct description of tension is that it is a push or pull exerted by a rope or string. Tension specifically refers to the force that is transmitted through a medium (like a rope or string) when it is pulled tight by forces acting at either end. This force is directed along the length of the material and acts to balance other forces in scenarios like hanging objects or pulling objects. Understanding tension is essential in physics, especially in mechanics, as it helps describe how forces interact in systems involving cables, ropes, or strings. Other options reflect different types of forces or concepts in physics but do not accurately capture the specific nature of tension. For instance, a force that pulls an object downward describes gravity, while a resistance force opposing motion refers to friction. A force acting on an object in free fall relates to gravity as well. Therefore, the distinctive characteristic of tension as a force exerted through a medium makes the second choice the correct one.