App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 11 · 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 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
2. 2.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 25 px
   Label: 28 px
   Footer: 25 px
   Hint: 21 px
   Title: 9 px (a) Footer (b) Title (c) Label (d) Body text
4. 4.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) big touch targets (d) tiny tap areas
5. 5.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
6. 6.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
7. 7.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
8. 8.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) icons with no labels (d) big touch targets
9. 9.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
10. 10.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Body text: 11 px
    Footer: 17 px (a) Footer (b) Title (c) Body text
12. 12.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
13. 13.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
15. 15.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
16. 16.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
17. 17.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) sudden loud sounds (d) tiny tap areas
18. 18.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
19. 19.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
20. 20.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) icons with no labels (d) fast-flashing lights
21. 21.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Body text: 10 px
    Footer: 21 px
23. 23.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
24. 24.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
25. 25.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) labels on every icon
26. 26.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
27. 27.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) sudden loud sounds (d) strong colour contrast
28. 28.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) strong colour contrast (d) big touch targets
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Footer: 13 px
    Hint: 11 px
    Menu: 11 px
31. 31.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
32. 32.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Title: 20 px
    Footer: 14 px
34. 34.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 13 px
    Caption: 28 px
    Hint: 20 px (a) Caption (b) Menu (c) Hint
36. 36.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) labels on every icon (d) colour as the only clue
37. 37.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Label: 28 px
    Title: 11 px (a) Title (b) Body text (c) Label
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Label: 14 px
    Menu: 17 px
    Caption: 10 px
    Body text: 11 px
40. 40.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?

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