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

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
Sign up Log in
3 replies · 2K views
arun babu
Messages
8
Reaction score
0
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 couldn't get any useful info...
 

Discussion

Physics news on Phys.org


arildno said:
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...