App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 466 · 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 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
3. 3.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) icons with no labels (d) colour as the only clue
4. 4.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
5. 5.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
6. 6.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
7. 7.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) fast-flashing lights (d) tiny tap areas
8. 8.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) text that can grow (d) big touch targets
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 11 px
   Label: 11 px
   Hint: 10 px
   Caption: 13 px
10. 10.Which of these makes the app harder to use? (a) sudden loud sounds (b) big touch targets (c) labels on every icon (d) strong colour contrast
11. 11.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Menu: 24 px
    Title: 14 px
    Hint: 11 px
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Body text: 15 px
    Caption: 21 px
    Menu: 12 px
    Label: 17 px
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Menu: 22 px
    Title: 20 px
    Label: 21 px
    Hint: 13 px (a) Menu (b) Body text (c) Hint (d) Title
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Label: 26 px
    Body text: 11 px
    Title: 17 px
    Menu: 24 px (a) Hint (b) Body text (c) Title (d) Label
16. 16.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Title: 18 px
    Body text: 16 px (a) Footer (b) Body text (c) Title
18. 18.Which of these helps everyone use the app? (a) fast-flashing lights (b) captions on videos (c) icons with no labels (d) tiny tap areas
19. 19.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) icons with no labels (d) text that can grow
20. 20.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) captions on videos
21. 21.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
22. 22.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
23. 23.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
24. 24.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) strong colour contrast (d) sudden loud sounds
25. 25.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) sudden loud sounds (d) text that can grow
26. 26.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
27. 27.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Label: 27 px
    Title: 24 px
    Body text: 11 px (a) Title (b) Caption (c) Body text (d) Label
29. 29.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
30. 30.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Body text: 21 px
    Hint: 19 px
    Label: 17 px
32. 32.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 24 px
    Caption: 20 px
    Footer: 10 px
    Hint: 20 px
    Title: 26 px (a) Footer (b) Hint (c) Body text (d) Caption
34. 34.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
35. 35.♿ A screen has 12 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Body text: 17 px
    Label: 9 px
    Hint: 18 px
    Title: 20 px (a) Hint (b) Label (c) Body text (d) Caption
37. 37.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 28 px
    Title: 14 px
    Hint: 27 px
    Caption: 22 px
    Label: 16 px (a) Menu (b) Hint (c) Title (d) Caption
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Body text: 20 px
    Menu: 9 px (a) Body text (b) Hint (c) Menu

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