App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 504 · 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 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
2. 2.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) captions on videos (d) labels on every icon
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 12 px
   Title: 24 px
   Footer: 18 px (a) Footer (b) Title (c) Hint
4. 4.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) only the coder (d) nobody
5. 5.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) fast-flashing lights (d) captions on videos
7. 7.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
8. 8.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) tiny tap areas (d) icons with no labels
9. 9.Which of these helps everyone use the app? (a) icons with no labels (b) text that can grow (c) tiny tap areas (d) sudden loud sounds
10. 10.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) tiny tap areas (d) fast-flashing lights
11. 11.♿ 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
12. 12.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) text that can grow (d) labels on every icon
13. 13.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a bright colour (d) a long animation
14. 14.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) strong colour contrast (d) tiny tap areas
15. 15.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
16. 16.Which of these makes the app harder to use? (a) labels on every icon (b) icons with no labels (c) captions on videos (d) big touch targets
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Hint: 19 px
    Title: 24 px
    Menu: 19 px
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Hint: 26 px
    Title: 24 px
    Caption: 22 px (a) Caption (b) Hint (c) Body text (d) Title
19. 19.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) colour as the only clue (d) sudden loud sounds
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Menu: 17 px
    Label: 22 px
    Footer: 12 px (a) Menu (b) Caption (c) Footer (d) Label
22. 22.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
23. 23.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
24. 24.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) fast-flashing lights (d) colour as the only clue
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Body text: 12 px
    Hint: 22 px
    Caption: 17 px
26. 26.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 20 px
    Label: 21 px
    Menu: 11 px (a) Label (b) Caption (c) Menu
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Body text: 21 px
    Title: 24 px
29. 29.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
30. 30.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
31. 31.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
32. 32.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) captions on videos
33. 33.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) big touch targets (d) text that can grow
35. 35.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) sudden loud sounds (d) fast-flashing lights
36. 36.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
37. 37.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) tiny tap areas (d) strong colour contrast
38. 38.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
39. 39.♿ A screen has 10 icon buttons. Only 2 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: labels on every icon? (a) makes it harder (b) helps everyone

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