Explore the physics of two carts with different masses launched by a spring! In this video, we analyze motion, forces, and energy transfer using real-world examples and clear demonstrations. Learn how ...

Physics, especially the part about forces and motion, often feels like a maze of confusing concepts and formulas. If you’ve ever stared at a problem about an object moving or a force acting and ...

Electromagnetism and the weak nuclear force are two distinct fundamental forces. That wasn’t always the case. How many fundamental forces are there in our universe? For particle physicists, answering ...

Physics is good at explaining many of our universe’s strange phenomena — from the way invisible beams of the light fan into rainbows to how rocket fuel can propel us into space. Even so, there are ...