Forces
Learn About the Game Forces
Forces shape motion and form. A force pushes or pulls on an object. It can change speed, direction or the way something looks. Scientists use newtons to measure force. They draw arrows to show where and how it acts.
Nature runs on four forces. Gravity pulls planets into orbit. Electromagnetism makes magnets attract and sends electrical charges through wires. The weak nuclear force makes some atoms break down over time. The strong nuclear force holds protons and neutrons inside each atom.
Some forces cancel each other and nothing moves. Others push harder on one side and cause motion. Friction slows sliding surfaces. A tight rope carries tension and pulls where it is anchored. Air resistance works against anything that moves through the atmosphere. Forces govern events from tiny particles to distant galaxies.