Yep, your guess is right! Tenebrism, is the correct answer!
"Tenebrism deals with the extreme contrast of light and dark, along
with chiaroscuro, the two effects were what Caravaggio used to make his
paintings seem so dramatic."
Or maybe I'm wrong xD. Hopefully I helped!
The French artist Pierre-Paul Prud'hon created chiaroscuro by using black and white chalk on paper
Answer:
1) flat
2) interval
3) half step (?)
4) A flat
5) whole step
6) B (supposed to be a W at the end)
7) D (Supposed to be a W at the end, scales run in octaves, octaves are 8 notes)
8) the second one (the flats of e flat major are B,E,A)