Confused about copyright?
Writing about web page http://restricted.jisc.ac.uk/freearea/copyright2/0000.html
Check out this handy JISC tutorial. The scenarios are quite good because they describe exactly the sort of thing that tutors seem to want to do. You can test yourself, although I found the questions were a bit too taxing so gave up after a while, and just went forward for the answer!
But if you want to really save time, just skip straight to the summary which is very succinct.