App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 271 · 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 helps everyone use the app? (a) fast-flashing lights (b) strong colour contrast (c) tiny tap areas (d) colour as the only clue
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 21 px
   Body text: 26 px
   Title: 12 px
   Footer: 27 px (a) Footer (b) Body text (c) Label (d) Title
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 20 px
   Menu: 10 px
   Label: 27 px (a) Caption (b) Label (c) Menu
4. 4.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
5. 5.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
6. 6.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 12 px
   Menu: 22 px
   Footer: 19 px (a) Footer (b) Menu (c) Caption
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 16 px
   Label: 23 px
   Hint: 14 px
   Title: 17 px
   Footer: 24 px (a) Body text (b) Title (c) Hint (d) Label
9. 9.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) labels on every icon (d) fast-flashing lights
10. 10.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
11. 11.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
12. 12.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) captions on videos (d) big touch targets
13. 13.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users
15. 15.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) sudden loud sounds (d) text that can grow
16. 16.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Menu: 19 px
    Title: 14 px
    Hint: 12 px
    Caption: 11 px
18. 18.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 24 px
    Footer: 14 px
    Title: 22 px (a) Hint (b) Footer (c) Title
20. 20.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) icons with no labels (d) tiny tap areas
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Label: 16 px
    Menu: 12 px
    Title: 19 px
    Body text: 22 px (a) Label (b) Hint (c) Title (d) Menu
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Menu: 14 px
    Hint: 11 px
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Menu: 19 px
    Body text: 24 px
    Footer: 18 px
    Caption: 24 px
25. 25.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Label: 20 px
    Hint: 9 px (a) Label (b) Body text (c) Hint
27. 27.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
28. 28.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) fast-flashing lights (d) labels on every icon
30. 30.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Caption: 12 px
    Label: 25 px (a) Label (b) Caption (c) Hint
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Label: 17 px
    Caption: 10 px
    Title: 19 px
    Hint: 23 px (a) Label (b) Footer (c) Title (d) Caption
33. 33.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Hint: 28 px
    Label: 9 px
    Footer: 23 px
    Title: 16 px (a) Footer (b) Menu (c) Hint (d) Label
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Footer: 23 px
    Menu: 21 px
    Hint: 19 px
    Title: 9 px (a) Menu (b) Caption (c) Footer (d) Title
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 20 px
    Label: 21 px
    Footer: 22 px
37. 37.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
38. 38.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) icons with no labels (d) text that can grow
39. 39.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
40. 40.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) big touch targets

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