App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 455 · 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 is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) text that can grow (d) icons with no labels
2. 2.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
4. 4.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
6. 6.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a long animation (d) a bright colour
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 18 px
   Label: 28 px
   Menu: 9 px
   Caption: 20 px
   Hint: 21 px (a) Title (b) Caption (c) Menu (d) Label
8. 8.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) strong colour contrast (d) captions on videos
9. 9.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
10. 10.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
11. 11.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
14. 14.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Hint: 18 px
    Footer: 9 px
    Menu: 24 px (a) Menu (b) Label (c) Hint (d) Footer
16. 16.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Label: 9 px
    Body text: 19 px
    Caption: 18 px
    Title: 28 px (a) Menu (b) Label (c) Caption (d) Body text
18. 18.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) fast-flashing lights (d) sudden loud sounds
19. 19.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
20. 20.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
21. 21.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
22. 22.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
23. 23.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) big touch targets (d) text that can grow
24. 24.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
26. 26.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) tiny tap areas (d) text that can grow
27. 27.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
28. 28.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
29. 29.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
30. 30.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
31. 31.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Menu: 10 px
    Caption: 13 px
33. 33.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon
34. 34.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) fast-flashing lights (d) captions on videos
35. 35.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
36. 36.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Label: 23 px
    Title: 20 px
    Menu: 17 px
    Body text: 28 px (a) Label (b) Footer (c) Title (d) Menu
38. 38.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) captions on videos (d) strong colour contrast
39. 39.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
40. 40.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) sudden loud sounds (d) icons with no labels

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