App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 601 · 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.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
2. 2.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
3. 3.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
4. 4.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 10 px
   Footer: 16 px
   Caption: 17 px
   Body text: 27 px (a) Caption (b) Footer (c) Title (d) Body text
7. 7.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) tiny tap areas (d) captions on videos
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 14 px
   Footer: 22 px
   Menu: 12 px
   Title: 12 px
   Hint: 10 px
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 14 px
   Title: 18 px
   Hint: 21 px
   Caption: 23 px
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Title: 16 px
    Caption: 21 px
    Footer: 23 px
    Body text: 11 px
11. 11.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
12. 12.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) fast-flashing lights (d) labels on every icon
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Label: 24 px
    Caption: 24 px
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
15. 15.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
16. 16.Which of these helps everyone use the app? (a) labels on every icon (b) sudden loud sounds (c) tiny tap areas (d) fast-flashing lights
17. 17.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) tiny tap areas (d) labels on every icon
18. 18.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
19. 19.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) fast-flashing lights (d) big touch targets
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Footer: 12 px
    Title: 18 px
22. 22.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) icons with no labels (d) labels on every icon
23. 23.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
25. 25.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
26. 26.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
27. 27.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
28. 28.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
29. 29.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Label: 16 px
    Caption: 13 px
    Menu: 21 px
    Body text: 28 px (a) Caption (b) Menu (c) Title (d) Label
31. 31.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
32. 32.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
33. 33.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Body text: 18 px
    Title: 16 px
    Caption: 21 px (a) Menu (b) Caption (c) Body text (d) Title
35. 35.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) strong colour contrast (d) captions on videos
36. 36.♿ A screen has 5 icon buttons. Only 4 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: 12 px
    Body text: 21 px
    Caption: 20 px
    Title: 28 px
    Footer: 23 px (a) Title (b) Body text (c) Caption (d) Menu
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 20 px
    Hint: 14 px
    Body text: 12 px
    Title: 14 px
    Label: 18 px
39. 39.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
40. 40.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder

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