Quantum vs. Classical Mechanics :: essays research papers

incorrupt and Quantum mechanics are the two of import fields of mechanics in physics. Classical mechanics came a few hundred years before Quantum mechanics. Subsequently it is less(prenominal) accurate and less reliable then the more recent mechanic field of Quantum mechanics. despite being outdated, Classical mechanics can still be utilize for many everyday problems with bigger and s demoralise moving objects. However, when dealing with extremely fast moving or small subatomic particles a Classical approach will not produce sufficiently accurate results as was the case around the 19th century.Difficulties with the Classical mechanics theory came indemnify around the 19th century. First was the Ultraviolet Catastrophe. Experimental entropy when scrutiny blackbody radiation was found to be inconsistent with Classical mechanics. The data showed that as the wavelength of the incoming radiation approaches zero, the amount of elan vital being radiated withal approaches zero, w hereas Classical mechanics says the emitted energy is infinite. The second difficulty with the theory was its softness to correctly describe the photoelectric effect. The photoelectric effect says that photons from a egress are released when light hits it. Classical mechanics says that negatrons will be emitted from a metal by light waves with any frequency as wide as the intensity of the light is strong enough, and even if it is weak everywhere a long enough period of time electrons will in conclusion be emitted. The theory was proved incorrect after experiments showed that light nether certain frequencies did not produce the photoelectric effect on the metal, which meant that the emitting of electrons is cerebrate not to intensity but the waves frequency.A new string of mechanics, Quantum mechanics, was created in order to resolve the incompatibilities of Classical Mechanics. A main difference between the two fields of mechanics is the make up of the atom. In Quantum mechan ics electrons in an atom are outside of the nucleus in limited orbitals around the nucleus that they can jump from one to another besides when a specific energy level is reached, and can never be in-between the specific orbitals. Also Quantum mechanics says that a photon is released only when an electron jumps from a higher energy level to a lower energy level, or a higher energy orbital to a lower energy orbital. Classical mechanics, contradicting this, says that an atom is constantly emitting radiation.Quantum mechanics describes light as both a wave and a particle, depending on the situation.