App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 335 · 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.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
2. 2.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
3. 3.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
4. 4.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
5. 5.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) labels on every icon
6. 6.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) fast-flashing lights (d) text that can grow
7. 7.🔍 Which is the odd one out? (a) colour as the only clue (b) big touch targets (c) strong colour contrast (d) text that can grow
8. 8.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) tiny tap areas (d) labels on every icon
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 25 px
   Menu: 20 px
   Label: 13 px
   Caption: 17 px
   Hint: 17 px (a) Caption (b) Label (c) Menu (d) Body text
10. 10.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
11. 11.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
12. 12.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
13. 13.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
14. 14.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) strong colour contrast (d) captions on videos
15. 15.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Footer: 14 px
    Label: 20 px (a) Label (b) Caption (c) Footer
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 27 px
    Menu: 20 px
    Title: 10 px
    Body text: 26 px (a) Title (b) Body text (c) Menu (d) Caption
19. 19.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) sudden loud sounds
20. 20.Which of these helps everyone use the app? (a) colour as the only clue (b) labels on every icon (c) fast-flashing lights (d) sudden loud sounds
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Menu: 21 px
    Body text: 22 px
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Title: 19 px
    Menu: 21 px
23. 23.Which of these makes the app harder to use? (a) labels on every icon (b) sudden loud sounds (c) text that can grow (d) strong colour contrast
24. 24.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) fast-flashing lights (d) sudden loud sounds
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Footer: 24 px
    Body text: 21 px
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Footer: 9 px
    Label: 19 px
    Menu: 17 px (a) Hint (b) Menu (c) Label (d) Footer
29. 29.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Label: 13 px
    Title: 28 px (a) Title (b) Label (c) Footer
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Body text: 14 px
    Title: 23 px
    Hint: 17 px (a) Hint (b) Title (c) Body text (d) Menu
32. 32.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Label: 17 px
    Title: 25 px (a) Label (b) Title (c) Menu
36. 36.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Hint: 21 px
    Caption: 16 px
    Title: 28 px (a) Caption (b) Hint (c) Menu (d) Title
38. 38.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Menu: 11 px
    Caption: 11 px
40. 40.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False

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