Potential energy is the energy an object stores because of its position, shape, or chemical state. It is not energy in motion — it is energy waiting to become motion. A rock at the top of a cliff has potential energy. A compressed spring has it. The food in your stomach has it. When the … Read more
Quick answer: Kinetic energy is the energy an object has because it is moving. The faster it moves and the heavier it is, the more kinetic energy it carries. It is calculated using the formula Ek = ½mv², where m is mass in kilograms and v is speed in metres per second. The unit of … Read more
Quick answer: Physics is divided into 9 major branches — classical mechanics, thermodynamics, electromagnetism, optics, acoustics, quantum mechanics, relativity, nuclear physics, and astrophysics. Each branch studies a specific type of matter or energy interaction. They are not separate sciences. They are different lenses pointed at the same universe, and they feed into each other constantly. … Read more
Quick answer: Physics is the science of matter, energy, force, and motion. It studies how everything in the universe behaves — from the smallest particles inside an atom to the largest galaxies in space. Every device you use, every vehicle you ride, every building you stand in was built using physics. You are reading this … Read more
Look around you right now. Your desk, your water bottle, the air you are breathing, even your own hands. All of it is matter. Matter is everywhere. It makes up everything you can touch, taste, or smell. Scientists have spent thousands of years trying to understand it. And the good news? Once you understand the … Read more