App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 256 · 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 helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) colour as the only clue (d) sudden loud sounds
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 12 px
   Footer: 11 px
   Caption: 24 px
3. 3.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) icons with no labels (d) tiny tap areas
4. 4.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
5. 5.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
6. 6.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
7. 7.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
8. 8.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
9. 9.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) fast-flashing lights (d) text that can grow
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Hint: 18 px
    Footer: 24 px
11. 11.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) captions on videos (d) strong colour contrast
12. 12.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
13. 13.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
14. 14.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
15. 15.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
16. 16.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
17. 17.Which of these helps everyone use the app? (a) labels on every icon (b) tiny tap areas (c) sudden loud sounds (d) colour as the only clue
18. 18.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Footer: 24 px
    Menu: 21 px
20. 20.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
21. 21.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) colour as the only clue (d) sudden loud sounds
23. 23.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
24. 24.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
25. 25.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) fast-flashing lights (d) sudden loud sounds
26. 26.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Body text: 23 px
    Footer: 13 px
    Hint: 20 px
    Title: 19 px (a) Menu (b) Body text (c) Hint (d) Footer
28. 28.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) colour as the only clue
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Label: 28 px
    Hint: 9 px (a) Body text (b) Label (c) Hint
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Title: 9 px
    Caption: 25 px (a) Caption (b) Menu (c) Title
31. 31.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
32. 32.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) big touch targets (d) captions on videos
33. 33.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) colour as the only clue (d) tiny tap areas
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Title: 18 px
    Footer: 19 px
    Hint: 24 px
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Footer: 20 px
    Caption: 12 px
36. 36.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 15 px
    Title: 10 px
    Footer: 13 px
    Body text: 11 px
    Hint: 16 px
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 19 px
    Hint: 19 px
    Caption: 22 px
    Label: 23 px
    Title: 12 px (a) Title (b) Caption (c) Hint (d) Menu
39. 39.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
40. 40.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow

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