App Dev Worksheet: Accessibility

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

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