What are field forces?

Field forces are invisible pushes and pulls that happen between things without them touching.

Imagine you have a magnet and a paper clip, even if they're not touching, the magnet can pull the paper clip toward it. That's because the magnet creates an area around itself called a field, and anything in that field feels a force.

Think of a field like a bubble that surrounds something. If you have a ball and you throw it, it moves because of a push, that’s a contact force. But if you have two magnets facing each other, they can either pull or push each other even when they're not touching, that's a field force, like the bubble sending messages to the other magnet.

• A barber’s chair moves up and down because of a pump, that’s a contact force.
• A door can close by itself if there's a spring inside, that’s also a contact force.
• But when you feel your hair stand up after getting out of the bath, it's because of static electricity, which is a kind of field force. Your body creates an invisible bubble around it, and your hair gets pushed away by it.

Field forces make things move without touching, just like a hidden bubble doing the work!