App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 126 · 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.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) tiny tap areas (d) captions on videos
2. 2.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
3. 3.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
4. 4.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
5. 5.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 15 px
   Footer: 17 px
   Title: 13 px
   Label: 18 px
7. 7.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
8. 8.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) colour as the only clue (d) fast-flashing lights
9. 9.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Menu: 17 px
    Body text: 20 px
    Caption: 11 px (a) Menu (b) Caption (c) Footer (d) Body text
11. 11.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
12. 12.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
13. 13.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) big touch targets (d) colour as the only clue
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Caption: 11 px
    Hint: 16 px
    Title: 13 px
    Body text: 18 px
16. 16.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a text label (d) a long animation
17. 17.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) text that can grow (d) captions on videos
18. 18.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
19. 19.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) text that can grow (d) colour as the only clue
20. 20.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
21. 21.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
22. 22.♿ A screen has 11 icon buttons. Only 2 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. Which text on this screen is too small?
    Title: 21 px
    Hint: 9 px
    Label: 26 px
    Menu: 16 px (a) Label (b) Title (c) Hint (d) Menu
24. 24.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
25. 25.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) tiny tap areas (d) captions on videos
26. 26.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
27. 27.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
28. 28.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) tiny tap areas (d) captions on videos
29. 29.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Label: 25 px
    Title: 19 px
    Footer: 26 px
    Menu: 13 px (a) Menu (b) Hint (c) Title (d) Label
31. 31.Which of these helps everyone use the app? (a) fast-flashing lights (b) labels on every icon (c) tiny tap areas (d) sudden loud sounds
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Title: 27 px
    Menu: 14 px (a) Title (b) Menu (c) Hint
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Body text: 19 px
    Caption: 13 px (a) Caption (b) Label (c) Body text
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Title: 22 px
    Body text: 24 px
    Footer: 24 px
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 24 px
    Menu: 18 px
    Hint: 16 px
    Caption: 13 px (a) Menu (b) Body text (c) Hint (d) Caption
36. 36.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) captions on videos (d) strong colour contrast
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Label: 21 px
    Caption: 18 px
    Menu: 14 px (a) Caption (b) Title (c) Menu (d) Label
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Body text: 16 px
    Label: 17 px
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Hint: 13 px
    Label: 24 px (a) Body text (b) Hint (c) Label
40. 40.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone

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