I am trying to create a test for year seven pupils in IT at a secondary
school in the UK.

I want a sound clip to play automatically when a user enters a new
worksheet, or when an image is pressed. The first is my preference.

For instance once the user clicks continue, the hyperlink will take them to
the next worksheet where the sound file will play:

'This test is 1 hour long and there are 9 sections. It is multiple choice
etc.'

Can anybody give me a dummies (and I mean dummies!) guide to how to do this!