App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 59 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 14 px
   Title: 18 px
   Body text: 16 px
   Caption: 14 px
2. 2.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) big touch targets (d) text that can grow
4. 4.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to add colour (d) to hide the sound
5. 5.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 9 px
   Label: 24 px
   Title: 25 px (a) Caption (b) Title (c) Label
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: big touch targets? (a) helps everyone (b) makes it harder
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 13 px
   Label: 25 px
   Menu: 27 px
   Footer: 27 px (a) Hint (b) Footer (c) Label (d) Menu
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Menu: 11 px
    Caption: 13 px
11. 11.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Label: 13 px
    Hint: 16 px
    Caption: 22 px (a) Hint (b) Footer (c) Label (d) Caption
13. 13.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 26 px
    Menu: 16 px
    Hint: 11 px
    Caption: 18 px
    Body text: 21 px (a) Hint (b) Caption (c) Menu (d) Label
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Title: 19 px
    Hint: 16 px
    Caption: 17 px
    Footer: 10 px
16. 16.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) icons with no labels (d) captions on videos
17. 17.Which of these helps everyone use the app? (a) sudden loud sounds (b) strong colour contrast (c) tiny tap areas (d) icons with no labels
18. 18.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) captions on videos (d) sudden loud sounds
19. 19.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) colour as the only clue (d) text that can grow
20. 20.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) big touch targets (d) strong colour contrast
21. 21.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
22. 22.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the server (d) the battery
23. 23.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) text that can grow (d) icons with no labels
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Caption: 21 px
    Body text: 11 px
    Menu: 10 px
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Caption: 24 px
    Footer: 13 px
    Menu: 10 px
    Title: 15 px
27. 27.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
28. 28.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
29. 29.♿ A screen has 12 icon buttons. Only 10 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?
    Body text: 26 px
    Hint: 27 px
    Menu: 28 px
    Footer: 9 px
    Caption: 27 px (a) Footer (b) Menu (c) Hint (d) Body text
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Label: 11 px
    Hint: 23 px
    Caption: 20 px
32. 32.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) labels on every icon (d) tiny tap areas
33. 33.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
36. 36.♿ A screen has 8 icon buttons. Only 3 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?
    Caption: 10 px
    Title: 24 px
    Footer: 24 px (a) Caption (b) Title (c) Footer
38. 38.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Footer: 26 px
    Title: 25 px (a) Body text (b) Footer (c) Title
40. 40.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) text that can grow (d) colour as the only clue

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