Fill out the worksheet below to show your understanding of Shutter Speed. I have included a bit about shutter speed here to help you start your research. Look for videos, imagery, photos, etc that may help you with understanding this, seemingly simple, photographic basic.
The shutter speed is the amount of time the light is allowed to hit the "film" sensor
The longer the shutter remains open the more light that can pass through to the film.
The numbers are often represented by fractions. Which could mean you have to look at 1/10 as being 1/10th of a second.
The numbers usually look like this:
30s _ 15 s _ 8 s _ 4 s _ 2 s _ 1 sec _ 1/2 _ 1/4 _ 1/8 _ 1/15_ 1/30 _ 1/60_ 1/125 _ 1/250_ 1/500 _ 1/1000_ 1/2000 _ 1/4000