App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 558 · 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.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) text that can grow (d) labels on every icon
2. 2.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) the battery (d) colour-blind users
3. 3.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 28 px
   Footer: 23 px
   Label: 10 px (a) Body text (b) Footer (c) Label
5. 5.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) labels on every icon (d) sudden loud sounds
6. 6.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 10 px
   Menu: 23 px
   Hint: 28 px (a) Menu (b) Hint (c) Body text
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 14 px
   Hint: 10 px
   Body text: 24 px
9. 9.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
10. 10.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) strong colour contrast (d) icons with no labels
11. 11.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
12. 12.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Caption: 21 px
    Body text: 12 px
    Footer: 11 px
14. 14.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
15. 15.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) colour as the only clue (d) labels on every icon
16. 16.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
17. 17.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) fast-flashing lights (d) big touch targets
18. 18.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) labels on every icon (d) captions on videos
19. 19.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) strong colour contrast (d) sudden loud sounds
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Label: 24 px
    Menu: 11 px
    Title: 20 px (a) Title (b) Label (c) Footer (d) Menu
21. 21.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
22. 22.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
23. 23.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Label: 27 px
    Body text: 25 px
    Menu: 10 px (a) Title (b) Menu (c) Label (d) Body text
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Title: 18 px
    Footer: 18 px
    Body text: 23 px
    Caption: 11 px (a) Label (b) Title (c) Footer (d) Caption
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Title: 26 px
    Hint: 22 px (a) Hint (b) Caption (c) Title
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Caption: 16 px
    Hint: 10 px
    Title: 20 px
28. 28.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
30. 30.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
31. 31.♿ A screen has 7 icon buttons. Only 6 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?
    Caption: 10 px
    Footer: 25 px
    Title: 18 px (a) Footer (b) Title (c) Caption
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Hint: 14 px
    Footer: 23 px (a) Title (b) Hint (c) Footer
34. 34.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
35. 35.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
36. 36.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Caption: 26 px
    Title: 22 px
    Footer: 24 px (a) Caption (b) Footer (c) Body text (d) Title
38. 38.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
39. 39.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
40. 40.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?

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