Does friction in any way increase when the surfaces get very smooth

  • Thread starter arun babu
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  • #1
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does friction in any way increase when the surfaces get very smooth .....?????

a teacher told us that it can increase due to electromagnetism......is it true...i searched the net but couldnt get any useful info....
 

Answers and Replies

  • #3
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Look up on the subject of cold welding.
http://en.wikipedia.org/wiki/Cold_welding

thanks arildno...i viewed the above linked and learned that when very smooth surfaces are brought together in vacuum they adhere very strongly to each other...but it is due to van der waals forces right???k...this may be a silly question...but does van der waals forces come under electromagnetism...
 
  • #4
arildno
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Yes, van der Waals-forces ARE electromagnetism written small.
 

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