App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 797 · 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 1 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?
   Footer: 10 px
   Label: 18 px
   Hint: 16 px (a) Footer (b) Label (c) Hint
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 24 px
   Menu: 22 px
   Body text: 19 px
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 24 px
   Menu: 11 px
   Hint: 18 px
5. 5.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 14 px
   Footer: 21 px
   Body text: 23 px
   Caption: 13 px
7. 7.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
8. 8.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) fast typists (d) colour-blind users
9. 9.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
10. 10.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
11. 11.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
12. 12.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Hint: 28 px
    Title: 28 px
    Footer: 22 px
    Body text: 11 px (a) Title (b) Hint (c) Body text (d) Caption
14. 14.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a long animation (d) a text label
15. 15.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
16. 16.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
17. 17.Which of these makes the app harder to use? (a) colour as the only clue (b) labels on every icon (c) captions on videos (d) strong colour contrast
18. 18.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
19. 19.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 15 px
    Caption: 19 px
    Body text: 24 px
21. 21.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) sudden loud sounds (d) text that can grow
22. 22.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Hint: 16 px
    Label: 12 px
    Title: 20 px
    Footer: 11 px
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Caption: 13 px
    Hint: 12 px
25. 25.Which of these helps everyone use the app? (a) labels on every icon (b) fast-flashing lights (c) colour as the only clue (d) tiny tap areas
26. 26.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
27. 27.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
28. 28.Which of these helps everyone use the app? (a) fast-flashing lights (b) strong colour contrast (c) colour as the only clue (d) tiny tap areas
29. 29.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 27 px
    Title: 19 px
    Body text: 27 px
    Hint: 13 px (a) Body text (b) Hint (c) Title (d) Caption
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Menu: 18 px
    Title: 15 px
    Caption: 12 px
    Hint: 15 px
32. 32.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Body text: 26 px
    Hint: 12 px (a) Menu (b) Hint (c) Body text
34. 34.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) big touch targets (d) fast-flashing lights
35. 35.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
36. 36.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Caption: 27 px
    Title: 9 px
    Body text: 18 px (a) Menu (b) Caption (c) Body text (d) Title
38. 38.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
39. 39.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) captions on videos (d) tiny tap areas
40. 40.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) big touch targets (d) sudden loud sounds

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