Yes, this is correct. This is false. Electrical power is measured in Watts. Energy is measured in Joules. It's useful to repeat the wording from the question in the response so that learners can see exactly which bits were true and which bits were false without having to flick back to the original questions all the time.
Many people do that at first.
A vertical list is much easier to scan than a horizontal collection of words. If you cannot, you should refer back to the relevant pages and refresh your memory. This learning activity can remind students of a puzzle. Write numbers 1 to 5 alongside to put them into the order which you think is most sensible. With open-ended questions, learners may often have given alternative 'good' answers, and they need to be allowed to give themselves credit for these.