Key Principles in Physics

Conservation Laws: These laws state that certain quantities remain constant in isolated systems.

  • Conservation of Energy: Energy cannot be created or destroyed, only converted from one form to another.
  • Conservation of Momentum: The total momentum of a closed system remains constant unless acted upon by external forces.

Newton’s Laws of Motion: These three laws explain how objects move and interact under the influence of forces.

  • First law (Inertia): An object at rest stays at rest unless acted upon by an external force.
  • Second law (F=ma): The force on an object is equal to its mass times its acceleration.
  • Third law (Action-Reaction): For every action, there is an equal and opposite reaction.

The Law of Gravity: Any two masses in the universe attract each other with a force proportional to the product of their masses and inversely proportional to the square of the distance between them.

The Speed of Light: In vacuum, light travels at a constant speed of approximately 299,792 kilometers per second (186,282 miles per second). This is a fundamental constant of the universe


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