Friction
The force that opposes motion between two surfaces that are touching
Real World Example
Imagine trying to push a heavy couch across a carpeted floor. Just like the resistance you feel while pushing the couch, friction is the force that opposes motion between two surfaces in contact, such as the couch and the carpet. In this analogy, the heavy couch represents the moving object, the carpet is the surface it moves on, and the resistance you experience is akin to friction, which makes the task harder by opposing the motion.
Real World Example Illustration
Practice Version
