classical mechanics

noun

, Physics.

1. the branch of mechanics that is based on Newton's laws of motion and that is applicable to systems that are so large that Planck's constant can be regarded as negligibly small ( quantum mechanics ).

Word History and Origins

Origin of classical mechanics¹

First recorded in 1930–35

Example Sentences

In classical mechanics, a particle must have enough energy to overcome an energy barrier for a reaction to occur.

From Science Daily

If successful, achieving entanglement of levitated nano- and micro-particles could narrow the gap between the quantum world and everyday classical mechanics.

From Science Daily

To do this, felines exploit the physical laws of classical mechanics: by placing their front paws close to their body, they reduce their moment of inertia.

From Scientific American

Macroscopic objects made of very many atoms, on the other hand, normally obey classical mechanics: they cannot assume two contradictory states simultaneously.

From Scientific American

We once harnessed our knowledge of classical mechanics to build machines, to make factories, leading to the industrial revolution.

From Salon