App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 12 · 40 questions

Developer's tip (Design for everyone): Our rule: text is at least 16 px; every icon has a text label for screen readers. Add captions to videos; never use colour as the only clue. Big touch targets and strong contrast help everyone.

1. 1.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 28 px
   Menu: 28 px
   Footer: 27 px
   Title: 21 px
   Caption: 10 px (a) Footer (b) Menu (c) Label (d) Caption
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 24 px
   Body text: 16 px
   Footer: 17 px
3. 3.Which of these makes the app harder to use? (a) icons with no labels (b) text that can grow (c) strong colour contrast (d) captions on videos
4. 4.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
5. 5.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 24 px
   Label: 10 px
   Hint: 22 px
   Menu: 17 px (a) Hint (b) Title (c) Label (d) Menu
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 13 px
   Caption: 22 px
   Title: 16 px
   Label: 18 px (a) Caption (b) Title (c) Label (d) Menu
9. 9.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) labels on every icon (d) big touch targets
10. 10.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a bright colour (d) a sound
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 12 px
    Caption: 10 px
    Footer: 23 px
12. 12.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
13. 13.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
14. 14.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
15. 15.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
16. 16.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) takes photos (d) makes text tiny
17. 17.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) strong colour contrast (d) fast-flashing lights
18. 18.Which of these makes the app harder to use? (a) sudden loud sounds (b) labels on every icon (c) captions on videos (d) strong colour contrast
19. 19.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) tiny tap areas (d) icons with no labels
20. 20.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
21. 21.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
22. 22.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
23. 23.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
24. 24.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) icons with no labels (d) tiny tap areas
25. 25.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) captions on videos (d) text that can grow
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Menu: 24 px
    Title: 14 px
27. 27.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
28. 28.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
29. 29.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
30. 30.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) so anyone can follow (d) to slow them down
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Title: 25 px
    Body text: 17 px
    Label: 11 px (a) Body text (b) Menu (c) Label (d) Title
32. 32.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) labels on every icon (d) icons with no labels
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Body text: 23 px
    Footer: 17 px
    Menu: 20 px
    Hint: 21 px (a) Footer (b) Title (c) Menu (d) Body text
34. 34.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
35. 35.Which of these makes the app harder to use? (a) fast-flashing lights (b) captions on videos (c) text that can grow (d) strong colour contrast
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 22 px
    Body text: 20 px
    Menu: 20 px
    Title: 12 px
    Footer: 23 px (a) Menu (b) Body text (c) Title (d) Caption
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Footer: 26 px
    Menu: 25 px (a) Label (b) Menu (c) Footer
38. 38.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) big touch targets (d) text that can grow
39. 39.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) labels on every icon (d) sudden loud sounds
40. 40.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) text that can grow (d) sudden loud sounds

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