Forces Basics
Forces are simply pushes or pulls that make things happen around you. Every time you kick a football, open a door, or even just stand still, forces are at work.
Forces come in two main types: contact forces (where objects must touch) like friction and tension, and non-contact forces (where objects don't need to touch) like gravity and magnetism. Think of pushing a trolley versus a magnet attracting metal from across the room.
Here's something that might surprise you - forces are vector quantities, meaning they have both size and direction. Speed is just how fast you're going, but velocity tells you how fast AND which way you're heading.
Key Point: When two objects interact, they always create equal and opposite forces on each other - this is why you can feel the ground pushing back when you walk on it!
