Chapter 23 — Quiz

A self-check on vertical and short-form craft. Answer from memory first, then check the key. The "what's wrong with this short?" questions at the end are the most valuable — they are exactly the diagnostic eye a creator lives on.

Multiple choice

1. Vertical video is best described as: - A. A horizontal video rotated 90 degrees in the edit. - B. Video composed for a tall frame (usually 9:16) to fill a phone held upright. - C. Any video shot on a phone. - D. A 1:1 square video.

2. The safe zone in a vertical video is: - A. The part of the frame that is in focus. - B. The region that stays visible and uncovered by platform interface and cropping. - C. The area a copyright filter won't flag. - D. The middle third of a 16:9 frame.

3. Which zone of a vertical frame should you assume the platform's own interface will cover? - A. The exact center. - B. The upper third only. - C. The bottom strip (username, caption, progress bar) and the right edge (buttons). - D. None — the platform never covers your video.

4. The social hook differs from the narrative hook (Chapter 17) mainly because it: - A. Is longer and more detailed. - B. Has about two seconds to win a viewer who is actively scrolling away, not ten seconds for a committed viewer. - C. Only uses music, never text. - D. Is added after the video is posted.

5. An "open loop" in a hook is: - A. A video with no ending. - B. A curiosity gap you open but don't immediately close, so the viewer stays to close it. - C. A looping background animation. - D. A caption that repeats.

6. The most important hook decision is usually: - A. Which camera you shot on. - B. The color grade. - C. An editing decision — choosing which two seconds go first. - D. The length of the video.

7. Most social feed video is watched: - A. In full screen with the sound on. - B. With the sound off (muted autoplay), at least on the first pass. - C. On televisions. - D. Only by existing followers.

8. Burned-in (open) captions are preferred in short-form because: - A. They are required by law. - B. They guarantee the muted majority reads your words and you control the style and placement. - C. They are smaller than closed captions. - D. They cannot contain errors.

9. Why is "cut as fast as possible" a bad rule? - A. Fast cutting is always wrong. - B. Unmotivated fast cutting is just noise; the real goal is "no wasted moment," which still keeps a beat that lands a joke or reveal. - C. Platforms penalize any cut under one second. - D. Viewers prefer long static shots.

10. The full-screen short-form standard aspect ratio is: - A. 16:9 - B. 1:1 - C. 9:16 - D. 2.39:1

11. A platform's maximum allowed length is: - A. The ideal length to aim for. - B. Only permission — retention favors the shortest version that fully tells the story. - C. Irrelevant to reach. - D. The same on every platform.

12. Chasing maximum loudness on a social upload is pointless because: - A. Loud audio is illegal. - B. Platforms normalize loudness, turning loud uploads down toward a target. - C. Phones can't play loud audio. - D. Captions replace audio entirely.

13. The best way to make a later vertical crop easy is to: - A. Always shoot vertical and never horizontal. - B. Shoot the horizontal subject centered and a little loose, keeping action in a central column. - C. Use blur-fill on everything. - D. Crop in the camera.

14. When cropping a 16:9 clip to 9:16 would lose essential information (a wide demo, a two-shot, on-screen text), the better repurposing method is: - A. Blur-fill. - B. The stacked/letterbox layout, which preserves the whole frame and gives room for captions. - C. Speeding the clip up. - D. Deleting the clip.

15. Retention (watch time) is: - A. How many likes a video gets. - B. How much of a video people actually watch — average view duration, % viewed, the retention curve. - C. How long a video stays online. - D. The number of followers gained.

16. A steep cliff in the first two seconds of a retention curve means you should fix: - A. The middle of the video. - B. The color grade. - C. The hook — the first two seconds. - D. The export settings.

17. Which pair are the strongest positive signals a viewer can give? - A. Views and likes. - B. Shares and saves. - C. Watch time and file size. - D. Comments and dislikes.

18. Auto-generated platform captions should be: - A. Trusted as-is; they are always accurate. - B. Ignored entirely. - C. Used as a fast start, then proofread and corrected. - D. Turned off because they hurt reach.

True or false (justify in one sentence)

19. You can compose a vertical shot exactly like a 16:9 shot, just narrower.

20. A slow logo animation is a fine way to open a short-form video.

21. Because most viewers watch muted, audio quality no longer matters for short-form.

22. "The algorithm" rewarding your video is fundamentally different from the old idea that "story is the boss."

23. If a horizontal talking-head is composed with the subject on the left third, it will crop cleanly to vertical.

Short answer

24. Name the three channels a strong social hook fires on, and why all three matter given muted viewing.

25. List the four common social aspect ratios and what each is for.

26. Give the three honest methods for turning a 16:9 clip into a 9:16 clip, in rough order of quality.

27. A retention curve holds high, then drops sharply at the 10-second mark. What does this tell you, and what do you do?

28. Why does the chapter say the hook is "assembled, not filmed"?

What's wrong with this short? (perception & diagnosis)

29. A creator uploads a vertical video where their face is composed in the lower-left of the frame (as they'd frame a 16:9 interview). On the platform, viewers can barely see the face. What went wrong, and what's the fix?

30. A tutorial opens: a five-second animated logo, then "Hey guys, welcome back, don't forget to like and subscribe, so today I want to show you…" Its retention curve cliffs to 20% by second three. Diagnose it and prescribe the fix.

31. A beautifully shot vertical cooking video gets almost no reach. It has no on-screen text, and all the instructions are spoken. Viewers watch a couple seconds and leave. What is the most likely problem, and why does it drive people away?

32. A creator crops a wide 16:9 two-shot interview to 9:16 by simply centering the crop. In the vertical version, both speakers are half out of frame. What method should they have used instead, and why?

33. Someone exports their vertical at max loudness and a very high bitrate, then complains it "looks blocky and isn't any louder than everyone else's" after upload. Explain both outcomes.

Answer Key

1. B. Vertical video is composed for the tall 9:16 frame, not rotated or cropped from horizontal.
2. B. The safe zone survives platform UI and cropping; keep faces/text inside it.
3. C. Bottom strip (username/caption/progress bar) and right edge (button stack) — assume covered.
4. B. ~2 seconds against an actively-scrolling viewer vs. ~10 seconds for a committed one.
5. B. A curiosity gap the viewer stays to close.
6. C. Choosing which two seconds go first — the hook is built in the edit.
7. B. Muted autoplay is the default; a large share never unmute on the first pass.
8. B. Burned-in captions guarantee the muted majority reads them and give you style/placement control.
9. B. The goal is "no wasted moment," not speed for its own sake; motivate the pace.
10. C. 9:16 is the full-screen short-form standard.
11. B. Maximum length is permission, not a target; short wins retention.
12. B. Platforms normalize loudness, so extra loudness is discarded.
13. B. Shoot centered and loose — compose for the crop.
14. B. Stacked/letterbox preserves the whole frame and adds caption space.
15. B. Retention is how much of the video people actually watch.
16. C. An early cliff is a hook failure — fix the first two seconds.
17. B. Shares and saves are the strongest signals and best predict reaching new viewers.
18. C. Use auto-captions as a start, then proofread — an uncorrected caption is worse than none.
19. False. The tall frame has almost no width, so you compose vertically and get closer; horizontal composition (side thirds, nose room) doesn't transfer.
20. False. Every second of throat-clearing is an exit ramp; the interesting part must be frame one.
21. False. Sound is still half the picture — it richly rewards the unmuted viewer (who watches longer, helping retention), and drives completion; the muted viewer just must also be able to follow without it.
22. False. The platform is measuring whether your video holds attention — exactly what "story is the boss" always meant; retention is that principle with a scoreboard.
23. False. A subject on the left third gets stranded or cut when you crop to the tall central slice; compose centered to survive the crop.
24. Visual (a striking image/motion), verbal (first words on the payoff), and text (an on-screen promise/question). Because most viewing is muted, the visual and text channels must carry the hook even when the verbal channel is unheard.
25. 16:9 (horizontal/long-form), 9:16 (vertical — the short-form standard), 4:5 (in-feed portrait that commands screen but survives the grid), 1:1 (square — legacy, still safe).
26. Crop-and-reframe (keyframe to follow action); stacked/letterbox (keeps the whole frame + adds text space); blur-fill (fallback).
27. People made it to ten seconds, then a specific dull stretch or an over-long ending lost them; find that timestamp, watch what happens, and cut or tighten it (or end the video sooner).
28. Because your most compelling two seconds almost always occur in the middle of the footage; the craft is finding that moment and re-ordering it to the front in the edit, not capturing it first on the shoot.
29. The face lands in the bottom-left where the username and caption sit, so the interface covers it. Fix: recompose centered, eyes near the upper-third line, inside the action-safe column.
30. The opening is all throat-clearing — logo, greeting, subscribe plea, "so today…" — handing the scrolling viewer three seconds of exit ramp. Fix: cut everything before the payoff and lead with the result or the boldest line; open a loop in the first two seconds.
31. No captions on a muted-first platform — the video only makes sense with sound, so the muted majority can't follow it and leaves. Fix: add burned-in captions (and a text hook) so it's legible silent. Sound-off viewing is the default.
32. Crop-and-reframe (keyframe/pan between the two speakers) or a stacked layout that preserves the whole two-shot; a static centered crop can't hold two people spread across a wide frame.
33. Loudness: platforms normalize, so the extra volume is turned back down — no gain, just less headroom. "Blocky": the platform re-transcodes every upload to a lower bitrate for streaming, and high-detail/high-motion footage compresses badly; you can't beat the transcode, only feed it clean, native-resolution data.

Topics to review by question: vertical framing & safe zones (1–3, 19, 29); the social hook (4–6, 24, 28, 30); sound-off, captions, pace (7–9, 18, 21, 31); platform specs & aspect ratios (10–12, 25, 33); repurposing (13–14, 23, 26, 32); retention & analytics (15–17, 22, 27); throughlines (20, 22). Anything you missed, re-read that section before moving to Chapter 24.