Aperture
1. For this image I used an aperture of f16. This created a depth of field deep enough to leave both the landscape in the background and the trees and fence which frame it in the foreground in focus. (1/100, f16, ISO100)
2.a) In this image I used an aperture of f/3.5 to create a shallow depth of field. This left only a few flowers in focus and the background and foreground out of focus so that there were no distractions from them. (1/250, f3.5, ISO100) 
2.b) For comparison I used a tripod for the previous image so that I could also photograph it with a larger depth of field to show just how important the shallow depth of field was to it. In this one I used a an aperture of f22 so that everything was in focus. The added clarity to the rest of the image takes away interest from the flowers which are the main subject of the photograph. To compensate for the change in light I had to use a slower shutter speed of 1/4. (1/4, f3.5, ISO100)
Shutter speed
3.a) For this image I used a slow shutter speed of 1/30 and panned alongside the subject as he cycled past. The result is that the subject is perfectly in focus whilst the background is blurred. This shows how fast he is moving in comparison to his surroundings. I used an ISO of 100 to keep the image sharp and an aperture of f16 to balance out the exposure. (1/30, f16, ISO100). 
3.b) The drummer in the photograph is moving very fast so I used a fast shutter speed of 1/640 to freeze his movements. (1/640, f5.6, ISO100)
ISO
4. In these low light conditions I used a very high ISO of 3200. This obviously caused a lot of grain but it allowed me to use a fast enough shutter speed to capture the fast moving subject in focus. I then used an aperture of f/8 to give myself the correct exposure. (1/500, f8, ISO3200)
Adam Kitchener 