App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 155 · 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) tiny tap areas (b) labels on every icon (c) captions on videos (d) big touch targets
2. 2.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
3. 3.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
4. 4.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) text that can grow
6. 6.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) colour as the only clue (d) captions on videos
7. 7.Which of these makes the app harder to use? (a) icons with no labels (b) strong colour contrast (c) big touch targets (d) labels on every icon
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 23 px
   Menu: 10 px
   Caption: 22 px
   Label: 21 px
9. 9.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) strong colour contrast (d) big touch targets
11. 11.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) sudden loud sounds (d) captions on videos
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Menu: 18 px
    Caption: 25 px (a) Title (b) Menu (c) Caption
13. 13.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Title: 19 px
    Body text: 21 px
    Caption: 23 px (a) Label (b) Caption (c) Body text (d) Title
15. 15.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
16. 16.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) icons with no labels (d) fast-flashing lights
18. 18.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) captions on videos
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Footer: 9 px
    Body text: 19 px
    Hint: 27 px (a) Footer (b) Label (c) Body text (d) Hint
20. 20.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Title: 24 px
    Caption: 18 px
    Hint: 9 px (a) Title (b) Hint (c) Label (d) Caption
22. 22.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
23. 23.Which of these makes the app harder to use? (a) colour as the only clue (b) text that can grow (c) labels on every icon (d) big touch targets
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Footer: 28 px
    Caption: 23 px (a) Footer (b) Title (c) Caption
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Footer: 26 px
    Title: 12 px
    Label: 22 px (a) Footer (b) Label (c) Menu (d) Title
26. 26.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) the server (d) fast typists
27. 27.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
28. 28.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
29. 29.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
30. 30.Which of these helps everyone use the app? (a) fast-flashing lights (b) big touch targets (c) icons with no labels (d) colour as the only clue
31. 31.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) strong colour contrast (d) fast-flashing lights
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 12 px
    Title: 26 px
    Caption: 26 px
    Body text: 23 px (a) Title (b) Body text (c) Label (d) Caption
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Hint: 24 px
    Body text: 10 px
    Menu: 24 px
    Caption: 11 px
34. 34.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) captions on videos (d) big touch targets
35. 35.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
36. 36.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) text that can grow (d) colour as the only clue
37. 37.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
38. 38.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Hint: 15 px
    Footer: 10 px
    Label: 24 px
40. 40.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True

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