App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 82 · 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?
   Hint: 20 px
   Title: 16 px
   Label: 10 px
2. 2.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
3. 3.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
4. 4.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) text that can grow (d) captions on videos
5. 5.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 21 px
   Title: 15 px
   Hint: 21 px
   Caption: 22 px
   Menu: 15 px
7. 7.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 20 px
   Title: 10 px
   Body text: 18 px (a) Body text (b) Caption (c) Title
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 12 px
   Hint: 16 px
   Footer: 22 px (a) Body text (b) Footer (c) Hint
10. 10.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
11. 11.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) text that can grow (d) tiny tap areas
12. 12.🔍 Which is the odd one out? (a) colour as the only clue (b) big touch targets (c) captions on videos (d) text that can grow
13. 13.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Menu: 28 px
    Label: 18 px
    Body text: 22 px
    Caption: 11 px (a) Label (b) Caption (c) Title (d) Menu
15. 15.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
16. 16.Which of these makes the app harder to use? (a) colour as the only clue (b) big touch targets (c) text that can grow (d) labels on every icon
17. 17.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
18. 18.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Caption: 11 px
    Menu: 19 px
    Label: 25 px
    Title: 18 px (a) Body text (b) Menu (c) Label (d) Caption
20. 20.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
21. 21.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Footer: 21 px
    Title: 23 px (a) Footer (b) Caption (c) Title
23. 23.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) labels on every icon (d) icons with no labels
24. 24.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
25. 25.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Title: 13 px
    Body text: 16 px
    Footer: 20 px
    Menu: 14 px
28. 28.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
29. 29.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) captions on videos (d) icons with no labels
30. 30.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
31. 31.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Footer: 11 px
    Body text: 22 px (a) Footer (b) Body text (c) Hint
33. 33.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
34. 34.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) text that can grow (d) sudden loud sounds
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 22 px
    Caption: 23 px
    Title: 23 px
    Hint: 16 px
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Menu: 17 px
    Title: 20 px
    Footer: 22 px
37. 37.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Footer: 19 px
    Hint: 16 px
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Title: 12 px
    Caption: 18 px (a) Menu (b) Caption (c) Title
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Menu: 12 px
    Footer: 25 px
    Label: 18 px (a) Label (b) Title (c) Menu (d) Footer

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