App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 749 · 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 makes the app harder to use? (a) big touch targets (b) captions on videos (c) colour as the only clue (d) text that can grow
2. 2.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
3. 3.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
4. 4.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
5. 5.♿ A screen has 12 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
6. 6.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 22 px
   Footer: 19 px
   Hint: 17 px
   Caption: 16 px
   Menu: 10 px
8. 8.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
9. 9.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
10. 10.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
11. 11.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
12. 12.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
13. 13.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
14. 14.Which of these makes the app harder to use? (a) strong colour contrast (b) tiny tap areas (c) labels on every icon (d) text that can grow
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Body text: 21 px
    Menu: 19 px
    Title: 16 px
16. 16.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
17. 17.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) labels on every icon (d) sudden loud sounds
18. 18.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) captions on videos
19. 19.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) sudden loud sounds
20. 20.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
21. 21.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) fast-flashing lights (d) strong colour contrast
22. 22.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
23. 23.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) colour as the only clue (d) fast-flashing lights
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 26 px
    Label: 17 px
    Title: 23 px
    Menu: 10 px
    Hint: 19 px (a) Body text (b) Label (c) Menu (d) Title
26. 26.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) colour as the only clue (d) text that can grow
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 22 px
    Label: 23 px
    Hint: 15 px
    Caption: 18 px
28. 28.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) fast-flashing lights (d) strong colour contrast
29. 29.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
30. 30.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
31. 31.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) captions on videos (d) colour as the only clue
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Hint: 16 px
    Footer: 14 px (a) Footer (b) Hint (c) Body text
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 13 px
    Label: 16 px
    Title: 28 px (a) Title (b) Label (c) Caption
35. 35.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) captions on videos (d) sudden loud sounds
36. 36.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
37. 37.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Label: 18 px
    Caption: 24 px
    Title: 17 px
    Footer: 12 px (a) Label (b) Footer (c) Caption (d) Menu
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Caption: 10 px
    Label: 13 px
    Body text: 16 px
40. 40.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?

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