1. You would use faster shutter speed in a situation that had a lot of movement, especially if it were well lit. For example, at a basketball game with players running up and down the court in a indoor stadium.
2. You would want to use a slower shutter speed if your subject is not moving very fast, such as if you were photographing nature, such as a slow running river. You would also use slow shutter speed if you wanted a long exposure photo.
3.Shallow depth of field will better frame a subject, since it is the only thing perfectly in focus. You would use shallow depth of field if you wanted to take a portrait outside with forestry in the background, but did not want to draw attention away from your subject and towards the trees. A shallow depth of field f-stop might read something like F-1.4.
4. Deep depth of field will have more of your subject in focus, from foreground to background. Everything or almost everything appearing in the photo is in focus. I might use a deep depth of field if I were taking a landscape shot, since I would want subjects of varying distances in focus. A deeper f-stop might read
5. You would want to use a high ISO if you were taking a photograph in a dark place such as a cave, where you would need more light to hit the camera’s image sensor. A high ISO might read 1500.
6. You would want to use a low ISO if you were taking a photo in a very lit area, such as in snow under a bright sun, so that let light hits the image sensor. A very low ISO would be 100.
7. If I wanted to take a photo in a dark place like a cathedral of a priest swinging incense, I would open my aperture to let enough light hit the camera’s image sensor to compensate for there being low light. I would then focus the camera to have a somewhat shallow depth of field; the foreground (incense) perfectly in focus, with the background less in focus, but still enough in focus to show it was obviously taken in a cathedral. Depending on how fast the priest was swinging, I would set the shutter speed slow enough that a viewer would know that the subject was moving, but fast enough to capture the image as still, without too much motion blur.
Self Grade: A-
(The answers I gave could be considered correct, but I apparently did not finish my sentence at the end of question #4, so I took points off)