Opinions on Friction

Here you have a list of opinions about Friction and you can also give us your opinion about it.
You will see other people's opinions about Friction and you will find out what the others say about it.
Also, you will see opinions about other terms. Do not forget to leave your opinion about this topic and others related.



For other uses, see Friction (disambiguation).

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction:

  • Dry friction resists relative lateral motion of two solid surfaces in contact. Dry friction is subdivided into static friction ("stiction") between non-moving surfaces, and kinetic friction between moving surfaces.
  • Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other.
  • Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces.
  • Skin friction is a component of drag, the force resisting the motion of a fluid across the surface of a body.
  • Internal friction is the force resisting motion between the elements making up a solid material while it undergoes deformation.

When surfaces in contact move relative to each other, the friction between the two surfaces converts kinetic energy into thermal energy. This property can have dramatic consequences, as illustrated by the use of friction created by rubbing pieces of wood together to start a fire. Kinetic energy is converted to thermal energy whenever motion with friction occurs, for example when a viscous fluid is stirred. Another important consequence of many types of friction can be wear, which may lead to performance degradation and/or damage to components. Friction is a component of the science of tribology.

Friction is not itself a fundamental force. Dry friction arises from a combination of inter-surface adhesion, surface roughness, surface deformation, and surface contamination. The complexity of these interactions makes the calculation of friction from first principles impractical and necessitates the use of empirical methods for analysis and the development of theory.


In the image below, you can see a graph with the evolution of the times that people look for Friction. And below it, you can see how many pieces of news have been created about Friction in the last years.
Thanks to this graph, we can see the interest Friction has and the evolution of its popularity.

What do you think of Friction?

You can leave your opinion about Friction here as well as read the comments and opinions from other people about the topic.
It's important that all of us leave our opinions about Friction to have a better knowledge about it: