How is "Resistance" defined in a physical context?

In a physical context, "Resistance" is defined as an opposing force. It refers to any force that acts in opposition to motion or the movement of an object. When force is applied to push or pull an object, resistance works against that force, making it more challenging to achieve movement. For instance, in exercises or activities, resistance could come from weights, friction, or other forms of drag that hinder motion.

Understanding this concept is crucial in various physical activities, such as strength training and sports, where the goal often includes overcoming resistance to enhance performance and build muscular strength. While the other options relate to different types of interactions, they do not accurately capture the physical principle of resistance as it specifically pertains to opposing forces in motion.