What is Effective pressure?

Effective pressure is how much push something has when it’s squeezed between two things.

Imagine you're sitting on a soft couch, and your friend sits on the other side of the couch. The couch gets squished in the middle because both of you are pushing toward each other. That’s like effective pressure, it's how much the couch feels pushed from both sides together.

Think about Play-Doh. If you press your hand on one side, it moves a little. But if you press with both hands at the same time, it gets squished more. That’s because the effective pressure is bigger, both sides are working together to push harder.

In real life, like deep underwater or inside rocks, things get squeezed from all sides. The effective pressure helps us understand how much that squeezing feels like, it's the difference between how hard something is pushed and how much it can resist being squished. Just like your couch gets more squished when both you and your friend sit on it!