App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 73 · 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 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 27 px
   Caption: 16 px
   Hint: 14 px
   Label: 25 px
   Title: 17 px (a) Menu (b) Caption (c) Label (d) Hint
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 14 px
   Title: 10 px
   Footer: 22 px
   Caption: 14 px
   Label: 15 px
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 22 px
   Caption: 20 px
   Body text: 20 px
   Label: 18 px
5. 5.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a sound (d) a long animation
6. 6.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) tiny tap areas (d) strong colour contrast
7. 7.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) text that can grow (d) colour as the only clue
8. 8.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
9. 9.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
10. 10.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) strong colour contrast (d) sudden loud sounds
11. 11.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
12. 12.Which of these makes the app harder to use? (a) tiny tap areas (b) labels on every icon (c) big touch targets (d) captions on videos
13. 13.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) tiny tap areas (d) sudden loud sounds
14. 14.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) text that can grow (d) icons with no labels
15. 15.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Title: 12 px
    Hint: 20 px
    Label: 28 px (a) Label (b) Title (c) Hint (d) Body text
17. 17.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) sudden loud sounds (d) big touch targets
18. 18.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) big touch targets (d) colour as the only clue
19. 19.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) colour as the only clue (d) fast-flashing lights
20. 20.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
21. 21.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Menu: 10 px
    Caption: 21 px
    Hint: 24 px
    Title: 13 px
23. 23.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
24. 24.Which of these makes the app harder to use? (a) colour as the only clue (b) big touch targets (c) labels on every icon (d) strong colour contrast
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 17 px
    Menu: 27 px
    Hint: 10 px (a) Hint (b) Caption (c) Menu
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Hint: 11 px
    Footer: 24 px
    Title: 22 px
    Body text: 20 px (a) Title (b) Footer (c) Hint (d) Caption
27. 27.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
28. 28.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
29. 29.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
30. 30.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
31. 31.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 24 px
    Hint: 28 px
    Caption: 11 px
    Menu: 21 px (a) Label (b) Menu (c) Caption (d) Hint
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Body text: 11 px
    Footer: 19 px
    Label: 18 px (a) Label (b) Caption (c) Footer (d) Body text
34. 34.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Label: 23 px
    Body text: 21 px
    Menu: 14 px
36. 36.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
37. 37.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
38. 38.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) icons with no labels (d) text that can grow
39. 39.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) captions on videos (d) fast-flashing lights

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