Capillary Action: Where does the energy come from?

Question

You put a sponge on a wet surface, it pulls water up against gravity. Where does the energy come from that now is kinetic energy in the water?

In: 0

Answer 1

Sponges don’t use capillary action. They draw water in as they regain their shape. If you put a sponge on a puddle, not much will happen, but if you squeeze it first and then let it expand while it sits in the puddle, it soaks it up.