RationalWiki's 2018 Fundraiser

There is no RationalWiki without you. We are a small non-profit with no staff — we are hundreds of volunteers who document pseudoscience and crankery around the world every day. We will never allow ads because we must remain independent. We cannot rely on big donors with corresponding big agendas. We are not the largest website around, but we believe we play an important role in defending truth and objectivity.

If everyone seeing this today donates $5, we will meet our goal for 2018.

Fighting pseudoscience isn't free.
We are 100% user-supported! Help and donate $5, $20 or whatever you can today with PayPal Logo.png!

Donations so far: $3630Goal: $5000

Force

From RationalWiki
Jump to: navigation, search
The poetry of reality
Science
Icon science.svg
Extraordinary claims with
extraordinary evidence
Hot from the
giants' shoulders
— Outline Only —
This article is only a brief description of the subject, and is not intended to give a full explanation.
Check out the "see also" or "references" sections, or Wikipedia's article for more detail.

Force is what causes an object to undergo acceleration: to change its velocity, rotation, shape, pressure, and so on. The SI unit for it is the Newton. Force is a vector, consisting of a magnitude and direction. The resulting acceleration is in exact linear proportion to the magnitude of the force applied, and in the same direction.

There are various types of forces, however, all of them are consequences of fundamental forces: gravitational force, electromagnetic force and the strong and weak nuclear forces. The electromagnetic and weak nuclear forces have already been united into a single electroweak theory, which governed the time when the Universe was very hot and dense, before the two forces broke symmetry. The strong nuclear force has yet to be united with electroweak in a Grand Unified Theory (or GUT). The holy grail of physics is to unite this GUT with a quantum theory of gravity to produce a Theory of Everything (or TOE).

No relation to[edit]