App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 214 · 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 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
2. 2.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
3. 3.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 25 px
   Footer: 22 px
   Title: 12 px
   Menu: 28 px (a) Title (b) Caption (c) Menu (d) Footer
5. 5.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
6. 6.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 14 px
   Footer: 21 px
   Caption: 27 px (a) Body text (b) Caption (c) Footer
8. 8.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
9. 9.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
11. 11.Which of these makes the app harder to use? (a) big touch targets (b) icons with no labels (c) strong colour contrast (d) labels on every icon
12. 12.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
13. 13.Which of these makes the app harder to use? (a) captions on videos (b) fast-flashing lights (c) labels on every icon (d) text that can grow
14. 14.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
15. 15.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a bright colour (d) a long animation
16. 16.🔍 Which is the odd one out? (a) tiny tap areas (b) strong colour contrast (c) captions on videos (d) text that can grow
17. 17.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
18. 18.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Hint: 16 px
    Title: 18 px
    Label: 19 px (a) Hint (b) Title (c) Footer (d) Label
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Title: 16 px
    Hint: 22 px
    Menu: 21 px
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Body text: 17 px
    Label: 14 px
    Hint: 19 px
22. 22.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) fast-flashing lights (d) strong colour contrast
23. 23.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Hint: 16 px
    Label: 28 px
    Caption: 10 px
    Menu: 25 px (a) Caption (b) Hint (c) Body text (d) Label
26. 26.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) big touch targets
27. 27.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Menu: 24 px
    Footer: 10 px
    Hint: 26 px
    Label: 23 px (a) Footer (b) Menu (c) Body text (d) Hint
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Caption: 16 px
    Body text: 14 px
    Footer: 17 px (a) Caption (b) Footer (c) Title (d) Body text
30. 30.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) icons with no labels (d) labels on every icon
31. 31.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
32. 32.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) sudden loud sounds (d) labels on every icon
33. 33.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) colour as the only clue (d) strong colour contrast
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Label: 18 px
    Footer: 13 px
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Hint: 16 px
    Menu: 28 px
    Label: 17 px (a) Menu (b) Label (c) Footer (d) Hint
37. 37.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
38. 38.♿ A screen has 12 icon buttons. Only 11 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?
    Label: 14 px
    Title: 12 px
    Menu: 14 px
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Title: 14 px
    Hint: 24 px
    Footer: 16 px
    Label: 10 px

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