App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 92 · 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.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
2. 2.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) strong colour contrast
3. 3.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
4. 4.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) text that can grow (d) icons with no labels
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 14 px
   Label: 18 px
   Hint: 14 px
   Title: 22 px
   Menu: 13 px
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 20 px
   Label: 17 px
   Hint: 11 px (a) Label (b) Hint (c) Menu
7. 7.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) strong colour contrast (d) text that can grow
8. 8.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
9. 9.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Label: 15 px
    Caption: 18 px
    Body text: 23 px
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Footer: 20 px
    Caption: 23 px
    Title: 13 px
12. 12.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
13. 13.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) labels on every icon (d) tiny tap areas
14. 14.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
15. 15.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Hint: 15 px
    Body text: 18 px
    Caption: 15 px
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Caption: 9 px
    Hint: 26 px
    Title: 20 px (a) Hint (b) Body text (c) Caption (d) Title
18. 18.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Footer: 17 px
    Hint: 13 px
    Menu: 27 px
    Body text: 16 px (a) Footer (b) Menu (c) Hint (d) Caption
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Title: 24 px
    Caption: 28 px
    Hint: 11 px
    Label: 20 px (a) Body text (b) Title (c) Hint (d) Caption
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Menu: 17 px
    Body text: 18 px
    Footer: 14 px
    Title: 20 px (a) Hint (b) Body text (c) Footer (d) Menu
22. 22.Which of these helps everyone use the app? (a) fast-flashing lights (b) labels on every icon (c) tiny tap areas (d) icons with no labels
23. 23.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Label: 16 px
    Footer: 9 px
    Menu: 23 px
    Hint: 16 px (a) Menu (b) Label (c) Footer (d) Body text
25. 25.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the server (d) the battery
26. 26.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
27. 27.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) captions on videos (d) fast-flashing lights
28. 28.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
30. 30.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) labels on every icon (d) fast-flashing lights
31. 31.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
32. 32.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
33. 33.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) captions on videos
34. 34.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
36. 36.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
37. 37.Which of these makes the app harder to use? (a) strong colour contrast (b) colour as the only clue (c) big touch targets (d) labels on every icon
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Title: 24 px
    Label: 23 px
    Menu: 11 px
    Hint: 22 px
39. 39.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) text that can grow
40. 40.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True

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