In this simple task we had to demonstrate an understanding of the importance of aperture and shutter speed within photography. A low aperture (a larger hole in the lens) lets in more light, which results in an overexposed photograph, and a high aperture (a smaller hole in the lens) lets in less light, resulting in an underexposed photograph.
overexposed
underexposed
Using a slow shutter speed means the shutter is open for longer, which blurs fast moving objects, whereas a fast shutter speed captures fast moving objects quickly and in greater detail because the shutter is open for a shorter amount of time.
slow shutter speed
fast shutter speed