This ramp is an inclined plane.
The definition of an inclined plane is a surface that is at an angle against a horizontal surface.
An example of an inclined plane is a ramp.
a plane surface set at any angle other than a right angle against a horizontal surface: it is a simple machine that increases mechanical advantage but requires a longer working distance
A plane set at an angle to the horizontal, especially a simple machine used to raise or lower a load by rolling or sliding.
Pushing a load up a gentle slope requires less effort than lifting it.
A plane surface, such as a ramp or a blade, set at an acute angle to a horizontal surface, a direction of motion, or a direction of force. Inclined planes are used to increase the distance over which work is done, reducing the amount of force needed to impart energy to a system. Rolling a car up a hill, for example, requires less force than lifting it straight up off the ground. Many tools, such as the ax, wedge, chisel, and highway ramp, exploit the mechanical properties of the inclined plane.
(plural inclined planes)