App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 851 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 20 px
   Title: 22 px
   Hint: 20 px
   Menu: 21 px
   Label: 11 px
2. 2.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) tiny tap areas (d) text that can grow
3. 3.Which of these helps everyone use the app? (a) fast-flashing lights (b) big touch targets (c) colour as the only clue (d) tiny tap areas
4. 4.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 20 px
   Label: 11 px
   Caption: 12 px
7. 7.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
8. 8.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) text that can grow
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 10 px
   Hint: 26 px
   Label: 16 px
   Title: 27 px (a) Label (b) Caption (c) Hint (d) Title
10. 10.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) big touch targets
11. 11.♿ 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
12. 12.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
13. 13.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
14. 14.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Footer: 23 px
    Label: 26 px
    Caption: 16 px
    Hint: 14 px (a) Hint (b) Title (c) Label (d) Footer
16. 16.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) text that can grow (d) icons with no labels
17. 17.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Menu: 15 px
    Footer: 14 px
    Hint: 23 px
    Title: 17 px
19. 19.Which of these makes the app harder to use? (a) sudden loud sounds (b) text that can grow (c) labels on every icon (d) strong colour contrast
20. 20.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
21. 21.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
22. 22.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
23. 23.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) captions on videos
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Hint: 17 px
    Label: 13 px
    Title: 18 px (a) Hint (b) Body text (c) Title (d) Label
25. 25.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) strong colour contrast
26. 26.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) text that can grow (d) colour as the only clue
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Caption: 16 px
    Body text: 24 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Title: 23 px
    Footer: 24 px
    Hint: 19 px
29. 29.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
30. 30.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Caption: 11 px
    Title: 13 px
32. 32.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) big touch targets (d) icons with no labels
34. 34.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
35. 35.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
36. 36.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 24 px
    Body text: 19 px
    Label: 22 px
    Menu: 15 px
38. 38.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) text that can grow (d) sudden loud sounds
39. 39.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
40. 40.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder

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