App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 259 · 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.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
2. 2.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
3. 3.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 17 px
   Footer: 21 px
   Title: 10 px (a) Label (b) Footer (c) Title
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 24 px
   Body text: 10 px
   Title: 27 px
   Label: 19 px (a) Title (b) Body text (c) Hint (d) Label
6. 6.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
7. 7.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 20 px
   Menu: 18 px
   Title: 23 px
9. 9.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) labels on every icon (d) big touch targets
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Label: 22 px
    Title: 22 px (a) Title (b) Footer (c) Label
12. 12.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) text that can grow (d) captions on videos
13. 13.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
14. 14.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Label: 14 px
    Hint: 19 px
    Body text: 20 px (a) Body text (b) Label (c) Title (d) Hint
16. 16.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Hint: 23 px
    Title: 14 px
    Footer: 19 px
    Caption: 20 px
18. 18.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
19. 19.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) big touch targets
20. 20.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
21. 21.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) text that can grow (d) fast-flashing lights
22. 22.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) icons with no labels (d) labels on every icon
23. 23.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) to hide the sound (d) so anyone can follow
24. 24.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
25. 25.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) tiny tap areas (d) text that can grow
26. 26.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 14 px
    Menu: 25 px
    Label: 18 px
    Hint: 27 px (a) Label (b) Menu (c) Hint (d) Caption
28. 28.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) icons with no labels (d) sudden loud sounds
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Footer: 13 px
    Caption: 14 px
    Label: 18 px
    Title: 14 px
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Menu: 23 px
    Caption: 12 px (a) Caption (b) Title (c) Menu
31. 31.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a sound (d) a long animation
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Hint: 19 px
    Label: 17 px (a) Label (b) Title (c) Hint
33. 33.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) strong colour contrast (d) colour as the only clue
34. 34.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Label: 24 px
    Menu: 14 px
    Hint: 18 px
    Title: 25 px (a) Label (b) Hint (c) Menu (d) Caption
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Footer: 21 px
    Hint: 24 px
38. 38.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
39. 39.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder

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