App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 81 · 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?
   Footer: 17 px
   Caption: 10 px
   Title: 24 px
   Hint: 23 px (a) Footer (b) Title (c) Hint (d) Caption
2. 2.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) fast-flashing lights (d) big touch targets
3. 3.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) text that can grow (d) fast-flashing lights
4. 4.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
5. 5.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 17 px
   Caption: 28 px
   Footer: 12 px
   Label: 26 px
   Menu: 18 px (a) Caption (b) Label (c) Hint (d) Footer
7. 7.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 10 px
   Menu: 10 px
   Hint: 11 px
9. 9.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Title: 13 px
    Label: 12 px
11. 11.♿ 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
12. 12.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
13. 13.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) colour as the only clue (d) icons with no labels
14. 14.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
15. 15.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Hint: 20 px
    Body text: 10 px (a) Label (b) Hint (c) Body text
17. 17.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) tiny tap areas (d) labels on every icon
18. 18.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) plays music (d) takes photos
19. 19.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
20. 20.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) text that can grow (d) tiny tap areas
21. 21.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
22. 22.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Label: 15 px
    Title: 17 px
    Footer: 12 px
24. 24.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Caption: 15 px
    Footer: 18 px
    Menu: 13 px
26. 26.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Title: 15 px
    Footer: 15 px
    Hint: 11 px
28. 28.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) captions on videos
29. 29.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) sudden loud sounds (d) big touch targets
31. 31.Which of these makes the app harder to use? (a) sudden loud sounds (b) text that can grow (c) big touch targets (d) strong colour contrast
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Title: 13 px
    Caption: 19 px
    Menu: 24 px
    Hint: 22 px
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Body text: 20 px
    Title: 18 px
    Caption: 16 px
    Label: 13 px (a) Body text (b) Footer (c) Title (d) Label
34. 34.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Hint: 9 px
    Caption: 24 px
    Title: 27 px (a) Title (b) Caption (c) Hint (d) Footer
36. 36.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
37. 37.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) captions on videos (d) text that can grow
38. 38.Which of these makes the app harder to use? (a) colour as the only clue (b) captions on videos (c) labels on every icon (d) big touch targets
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Hint: 19 px
    Label: 16 px
    Title: 27 px
    Footer: 13 px (a) Menu (b) Hint (c) Label (d) Footer
40. 40.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) text that can grow

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