App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 760 · 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.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
2. 2.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) captions on videos (d) big touch targets
3. 3.Which of these makes the app harder to use? (a) strong colour contrast (b) sudden loud sounds (c) labels on every icon (d) text that can grow
4. 4.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
5. 5.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) captions on videos (d) fast-flashing lights
6. 6.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) big touch targets (d) captions on videos
7. 7.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 24 px
   Menu: 9 px
   Title: 19 px (a) Menu (b) Title (c) Footer
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 21 px
   Hint: 21 px
   Title: 17 px
   Footer: 10 px (a) Footer (b) Hint (c) Title (d) Caption
10. 10.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
11. 11.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) labels on every icon (d) colour as the only clue
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Label: 21 px
    Title: 12 px
    Footer: 12 px
    Menu: 13 px
13. 13.Which of these helps everyone use the app? (a) big touch targets (b) tiny tap areas (c) fast-flashing lights (d) sudden loud sounds
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 20 px
    Body text: 19 px
    Title: 19 px
    Hint: 13 px
    Caption: 16 px
15. 15.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
16. 16.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Hint: 16 px
    Footer: 13 px
    Caption: 19 px
18. 18.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
19. 19.♿ A screen has 7 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. How many texts on this screen are too small?
    Caption: 12 px
    Body text: 16 px
    Label: 12 px
21. 21.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
22. 22.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) strong colour contrast (d) colour as the only clue
23. 23.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) labels on every icon
24. 24.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
25. 25.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
26. 26.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
27. 27.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
28. 28.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
29. 29.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
30. 30.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
31. 31.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) captions on videos (d) tiny tap areas
32. 32.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ 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
34. 34.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a text label (d) a bright colour
35. 35.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
36. 36.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) sudden loud sounds (d) labels on every icon
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 17 px
    Title: 20 px
    Label: 22 px
    Footer: 27 px
    Menu: 14 px (a) Menu (b) Title (c) Caption (d) Label
38. 38.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
40. 40.Which of these makes the app harder to use? (a) colour as the only clue (b) captions on videos (c) labels on every icon (d) text that can grow

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