You're thinking about non-contact forces! These are forces that act on an object without any physical contact between the objects. Here are some examples:

* Gravity: The force that attracts objects with mass towards each other. You don't need to touch the Earth for it to pull you down!

* Electromagnetism: This force governs interactions between electrically charged particles and is responsible for things like magnetism and light. A magnet can pull a metal object without touching it.

* Nuclear Forces: These strong forces hold the nucleus of an atom together.

Let me know if you'd like to know more about any of these!