Important Laws of Physics

The laws that are used in Physics are the conclusions that are drawn after conducting many experiments that are now applied in day-to-day life. These laws and statements are universally accepted and cannot be altered.

Following is a list of such important laws that are used in Physics:

  1. Newton’s law of motion: There are three Newton’s law of motion which explains the relationship between the state of an object and to its motion.
  2. According to Newton’s first law of motion, an object continues to be in a state of rest until and unless an external force has been applied.
  3. According to Newton’s second law of motion, force is a product of mass and acceleration.
  4. According to Newton’s third of motion, for every action, there is an equal and opposite reaction.
  • Boyle’s law: Boyle’s law states that for a given mass of gas, the temperature remains constant when the volume varies inversely with respect to the pressure of the gas.
  • Charle’s law: Charle’s law states that for a given mass of gas, the pressure remains constant when the volume is directly proportional to the absolute temperature.
  • Kelvin-Planck statement: According to the Kelvin-Planck statement, it is impossible to devise a heat engine which operates in a cycle and produces no other effect other than heat transfer is generated to produce work.
  • Clausius statement: According to the Clausius statement, it is impossible to design a device which operates in a cycle and produce no other effect other than the heat transfer from a cold body to a hot body.
  • Law of conservation of energy: The law states that the energy can neither be created nor be destroyed but can be transformed from one form to other.
  • Law of conservation of mass:  The law states that for an isolated system, the mass can neither be created nor be destroyed, it remains constant.

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