Monday 24 October 2011

Friction

Friction is another force that is around us. Friction occurs whenever  two objects are in contact with each other. Friction slows things down, and stops some objects from starting to move. But it is also very useful. Smoother contact surfaces reduce the friction force.

0 comments:

Post a Comment

 
Tan Seow Hoon D20102044002 © 2008. Template Design By: SkinCorner