App Dev Worksheet: Accessibility

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

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