Tuesday, March 15, 2011
simple and complex machines
the bycicle is a complex machine as a pulley is a simple machine. The pulley, inclined plane, wedge, wheel and axle, simple lever, screw are all simple machines. and we use them in our every day life because they are a very helpful thing to us which makes things easier for our day and makes things faster.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment