App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 413 · 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: 10 px
   Label: 23 px
   Menu: 11 px
2. 2.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) labels on every icon (d) tiny tap areas
3. 3.♿ 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
4. 4.🔍 Which is the odd one out? (a) sudden loud sounds (b) big touch targets (c) text that can grow (d) strong colour contrast
5. 5.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
6. 6.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
7. 7.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
8. 8.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
9. 9.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Title: 13 px
    Footer: 10 px
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 14 px
    Hint: 15 px
    Title: 16 px
12. 12.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 14 px
    Hint: 27 px
    Footer: 24 px
    Caption: 28 px
    Menu: 26 px (a) Caption (b) Footer (c) Title (d) Hint
14. 14.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
15. 15.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
16. 16.Which of these helps everyone use the app? (a) captions on videos (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
17. 17.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
18. 18.Which of these helps everyone use the app? (a) colour as the only clue (b) big touch targets (c) sudden loud sounds (d) tiny tap areas
19. 19.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Body text: 16 px
    Hint: 21 px
    Caption: 22 px
    Footer: 11 px (a) Footer (b) Hint (c) Menu (d) Body text
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 23 px
    Label: 18 px
    Body text: 11 px (a) Body text (b) Label (c) Caption
22. 22.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) icons with no labels (d) sudden loud sounds
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 17 px
    Label: 12 px
    Menu: 17 px
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.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 17 px
    Footer: 21 px
    Title: 27 px
    Hint: 23 px
    Body text: 10 px (a) Footer (b) Body text (c) Caption (d) Title
28. 28.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
29. 29.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Hint: 9 px
    Body text: 16 px (a) Body text (b) Footer (c) Hint
31. 31.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
32. 32.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
34. 34.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) strong colour contrast (d) fast-flashing lights
35. 35.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
36. 36.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Label: 9 px
    Footer: 19 px (a) Menu (b) Label (c) Footer
38. 38.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) text that can grow (d) big touch targets
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 23 px
    Hint: 24 px
    Caption: 25 px
    Title: 12 px
    Footer: 18 px (a) Title (b) Hint (c) Menu (d) Caption

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