How does Alexander Calder use motion in his work, Carmen? How does he use color in this work? How do these two elements interact and what effect do they have? 

What will be an ideal response?

The element of motion includes actual movement, and when employed in a sculpture it is kinetic. Actual movement in sculpture creates an additional level to the viewer's experience. This mobile is almost always in motion, reminding the viewer that time is constantly passing. His choice of red and yellow colors show a primary color scheme, but Calder must have taken into account the green background of the trees. Green is a complement color to red, but analogous with yellow. The use of primary colors support the primal sense of time passing.