App Dev Worksheet: Accessibility

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

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