A wedge or a slide. The dynamics of objects sliding down inclined planes is a popular topic on SAT II Physics.
a simple machine for elevating objects; consists of plane surface that makes an acute angle with the horizontal
a flat surface set at an angle (other than a right angle) against a horizontal surface
a flat surface such as a board
a flat surface that is higher on one end
a flat surface that is higher on one side than the other
a slanted surface that links two different levels
a smooth rigid flat surface inclined at an angle to the horizontal
A simple machine consisting of a flat surface that is slanted.