The laws of gravity are also misundertood by a multitute of people. For example, most people think, in a vacuum, that a big rock will fall faster than a small rock and that both will fall faster than the feather.
Also, Newton's law of gravity was modified based on newer principles just like the theory of evolution evolves as additional evidence is gathered.
Worst than that. Some people think the Earth pulls a baseball down with more force than the baseball pulls the Earth up.
And more: Naive Theories of Motion
See post #422. :-)