The concept of is a fundamental force that attracts two bodies toward each other. It is what keeps the planets in orbit around the and gives weight to objects on Earth. Without gravity, objects would not fall to the ground, and life as we know it would be drastically different. Isaac Newton was one of the first to conceptualize gravity with his law of universal , stating that every mass attracts every other mass.
In the context of physics, comes in various forms, such as kinetic energy, which is the energy of motion, and potential energy, which is stored energy based on an object’s position. The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another. This means that the total energy in a closed system remains constant, regardless of the forms it takes. Understanding these principles is critical in solving numerous problems in and thermodynamics.
Another key concept is that of , which is any interaction that, when unopposed, will change the motion of an object. Forces can come in various forms, such as friction, tension, or gravitational force. The net force acting on an object is determined by the sum of all individual forces and dictates whether the object will remain at rest or continue to move with velocity. This relationship is encapsulated in Newton's second law of motion, which states that force equals mass times acceleration (F = ma).
Keywords
force | gravitation | constant | gravity | energy | mechanics | sun |
