App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 780 · 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.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) colour as the only clue (d) labels on every icon
2. 2.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
3. 3.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
4. 4.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
5. 5.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
7. 7.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
8. 8.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) strong colour contrast (d) tiny tap areas
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 22 px
   Footer: 22 px
   Title: 23 px
10. 10.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) text that can grow (d) tiny tap areas
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Title: 13 px
    Hint: 15 px
12. 12.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
13. 13.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
14. 14.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
15. 15.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
16. 16.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
17. 17.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
18. 18.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) big touch targets (d) tiny tap areas
19. 19.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) captions on videos (d) text that can grow
20. 20.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
21. 21.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) nobody (d) only experts
23. 23.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) icons with no labels (d) text that can grow
24. 24.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
25. 25.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) fast-flashing lights (d) sudden loud sounds
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Label: 26 px
    Body text: 21 px (a) Body text (b) Label (c) Title
27. 27.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
28. 28.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Footer: 12 px
    Menu: 23 px (a) Footer (b) Menu (c) Caption
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 21 px
    Footer: 18 px
    Menu: 12 px
31. 31.Which of these helps everyone use the app? (a) tiny tap areas (b) text that can grow (c) sudden loud sounds (d) colour as the only clue
32. 32.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) icons with no labels
33. 33.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
34. 34.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
35. 35.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
36. 36.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Label: 20 px
    Title: 9 px (a) Label (b) Title (c) Menu
38. 38.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 17 px
    Body text: 15 px
    Footer: 14 px
    Caption: 24 px
40. 40.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True

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