Sometimes you want a one-word answer. A name, a number, a term, a quick bit of recall. The new editor handles this with a Long Answer question, the same block you use for extended writing. There is no separate Free Response block, and you do not need one: what makes a question short is the mark scheme, not the block type.
If you are coming from the legacy editor, this is the block your Free Response questions become. Convert a legacy lesson and every Free Response is turned into a Long Answer automatically.
Setting one up
1. Type /long, or pick Long Answer from the + menu.
2. Type the question in the prompt field. Keep the ask tight: "Name the green pigment that absorbs light in plant cells" tells the student you want one word. "Tell me about chlorophyll" does not.
3. Write the mark scheme, and list the answers you will accept. Put alternatives on separate lines, for example chlorophyll, then chlorophyll a, then the green pigment.
4. Set the marks with the + and - controls in the bottom right. Short recall questions are usually worth 1 mark.
Writing a mark scheme for a one-word answer
The auto-marker reads your mark scheme as the definition of a correct answer, so tell it what latitude to allow. Be explicit about it rather than assuming:
"Accept chlorophyll. Accept minor spelling errors. Do not accept chloroplast." Clear, and the edge case is decided in advance.
"Accept any of: 1945, 1945 CE, nineteen forty-five." Useful whenever a number can be written more than one way.
"Accept mitochondrion or mitochondria." Saves you arguing about singulars later.
You can also click Generate Mark Scheme and let the AI draft one from your question, then edit it. Treat a generated mark scheme as a starting point, never as finished.
Short answer or extended answer?
Same block either way. The difference is what you write in the mark scheme and how many marks you allocate.
Short: one mark, a list of acceptable answers, you are checking recall.
Extended: several marks, criteria that each earn something, you are checking explanation and reasoning. See Adding a Long Answer question.
Either way the auto-marker reads everything above the question on the same page, so "using the table above, name the fastest species" works properly.