Reference Article

from Wikipedia, the free encyclopedia


Friction is the force that opposes the relative motion or tendency of such motion of two surfaces in contact.

It is also the contact of two objects creating static electricity.

It is not, however, a fundamental force, as it originates from the electromagnetic forces and exchange force between atoms.

In situations where the surfaces in contact are moving relative to each other, the friction between the two objects converts kinetic energy into sensitive energy, or heat (atomic vibrations).

Friction between solid objects and fluids (gases or liquids) is called fluid friction.

Note: This article excerpts material from the Wikipedia article "Friction", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:

Related Stories

Share This

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.


Breaking News:
from the past week

In Other News

... from

Science News

Health News

Environment News

Technology News


Free Subscriptions

Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile

Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?

Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins