App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 822 · 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. Which text on this screen is too small?
   Body text: 10 px
   Hint: 20 px
   Footer: 23 px
   Title: 17 px
   Caption: 24 px (a) Footer (b) Title (c) Body text (d) Hint
2. 2.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) only the coder (d) nobody
3. 3.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
4. 4.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) labels on every icon (d) tiny tap areas
5. 5.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 21 px
   Menu: 23 px
   Title: 23 px
   Label: 12 px
7. 7.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
8. 8.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
9. 9.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) sudden loud sounds (d) icons with no labels
11. 11.Which of these makes the app harder to use? (a) fast-flashing lights (b) labels on every icon (c) captions on videos (d) text that can grow
12. 12.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) big touch targets (d) tiny tap areas
13. 13.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
15. 15.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) labels on every icon (d) sudden loud sounds
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Caption: 12 px
    Footer: 17 px (a) Caption (b) Title (c) Footer
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 24 px
    Hint: 23 px
    Title: 28 px
    Menu: 17 px
    Footer: 9 px (a) Hint (b) Label (c) Footer (d) Title
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Hint: 25 px
    Title: 23 px
    Label: 10 px (a) Title (b) Hint (c) Body text (d) Label
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Menu: 23 px
    Caption: 16 px
20. 20.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) labels on every icon (d) big touch targets
21. 21.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
22. 22.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
23. 23.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Hint: 24 px
    Menu: 20 px (a) Hint (b) Menu (c) Title
25. 25.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 10 px
    Label: 20 px
    Footer: 18 px
    Hint: 28 px (a) Footer (b) Caption (c) Label (d) Hint
27. 27.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) colour as the only clue (d) icons with no labels
28. 28.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Label: 27 px
    Hint: 12 px (a) Hint (b) Label (c) Body text
30. 30.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Footer: 24 px
    Label: 12 px
    Caption: 17 px (a) Footer (b) Caption (c) Title (d) Label
32. 32.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Footer: 18 px
    Menu: 16 px
    Body text: 11 px
    Caption: 23 px
34. 34.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
36. 36.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
37. 37.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Hint: 28 px
    Menu: 28 px
    Title: 19 px
    Body text: 19 px (a) Caption (b) Menu (c) Title (d) Hint
39. 39.Which of these makes the app harder to use? (a) big touch targets (b) sudden loud sounds (c) strong colour contrast (d) labels on every icon
40. 40.True or false: “captions on videos” helps everyone use the app. (a) False (b) True

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