What about the Moon ?

Comets and asteroids strike the Moon at a wide range of impact speeds, (with a typical speed of 20 kilometers per second) producing craters with diameters 10 to 20 times larger than the impacting object. As always crater morphology depends on the impactor size.
An important fact about the Moon is its absence of atmosphere: in this way craters are preserved much better than on Earth and even very old craters are still visible..

Morphology of craters on the moon

Simple Moon craters have rim diameters of less than about 15 kilometers, while diameters larger than about 15 kilometers. This value
Complex craters on the Moon have diameters greater than 15 Km and can present different characteristic and complex forms (including shallow, relatively flat floors, central uplifts, and slump blocks and terraces on the inner wall of the crater rim):

 

Moltke Crater, 7 kilometers in diameter, is an excellent example of a simple crater with a bowl-shaped interior and smooth walls.
(NASA: Apollo 10 photograph AS10-29-4324.) 
Bessel Crater, 16 kilometers in diameter and 2 kilometers deep, is a typical transitional crater between simple and complex. The bowl-shaped structure has been destroied by slumping of material from the inner part of the crater rim.. However, wall terraces and a central peak have not developed.
(NASA:Apollo 15 Panoramic photograph AS15-9328.) 
Euler Crater, 28 kilometers in diameter and about 2.5 kilometers deep, is a complex crater morphology. It has a flattened floor, a small central peak, and material that has slumped off the inner crater rim. The blanket of ejecta surrounding the crater is quite visible.
(NASA: Part of Apollo 17 Metric photograph AS17-2923.) 
King Crater, on the Moon's farside, is 77 kilometers in diameter and more than 5 kilometers deep. It is a typical large lunar crater, with terraces and slump blocks on the inside of the crater rim and a relatively flat floor .
(NASA: Apollo 16 Metric photograph AS16-1580.)