App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 678 · 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.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
2. 2.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 15 px
   Caption: 17 px
   Footer: 16 px
   Hint: 12 px
   Label: 18 px
4. 4.Which of these helps everyone use the app? (a) labels on every icon (b) fast-flashing lights (c) sudden loud sounds (d) tiny tap areas
5. 5.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) captions on videos (d) labels on every icon
6. 6.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 12 px
   Hint: 17 px
   Footer: 11 px
   Title: 16 px
8. 8.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) captions on videos
9. 9.♿ A screen has 11 icon buttons. Only 4 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?
    Label: 12 px
    Caption: 24 px
    Hint: 20 px (a) Hint (b) Label (c) Caption
11. 11.Which of these makes the app harder to use? (a) tiny tap areas (b) captions on videos (c) text that can grow (d) big touch targets
12. 12.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) sudden loud sounds (d) icons with no labels
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Title: 24 px
    Footer: 22 px
    Menu: 10 px
    Caption: 10 px
14. 14.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
15. 15.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
16. 16.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
17. 17.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
18. 18.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) text that can grow
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Label: 20 px
    Caption: 16 px
20. 20.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
21. 21.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) big touch targets (d) strong colour contrast
22. 22.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) icons with no labels (d) colour as the only clue
23. 23.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Hint: 16 px
    Menu: 19 px
    Title: 21 px (a) Menu (b) Hint (c) Body text (d) Title
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 15 px
    Hint: 17 px
    Label: 12 px
    Menu: 24 px
    Title: 18 px
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Menu: 17 px
    Body text: 18 px
    Caption: 18 px
    Title: 14 px
27. 27.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) text that can grow (d) icons with no labels
28. 28.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
29. 29.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
30. 30.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
31. 31.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) big touch targets (d) sudden loud sounds
32. 32.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
33. 33.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
34. 34.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
35. 35.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) icons with no labels (d) text that can grow
36. 36.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) fast-flashing lights (d) tiny tap areas
38. 38.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
39. 39.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
40. 40.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour

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