App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 830 · 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?
   Title: 14 px
   Menu: 23 px
   Hint: 15 px
2. 2.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 17 px
   Body text: 25 px
   Label: 25 px
   Hint: 9 px (a) Hint (b) Title (c) Body text (d) Label
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 13 px
   Hint: 25 px
   Footer: 18 px (a) Footer (b) Title (c) Hint
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) labels on every icon (d) colour as the only clue
6. 6.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
7. 7.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
8. 8.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) text that can grow (d) fast-flashing lights
9. 9.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
10. 10.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Caption: 18 px
    Label: 24 px (a) Caption (b) Label (c) Body text
12. 12.♿ Does this help everyone, or make the app harder to use: labels on every icon? (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?
    Hint: 28 px
    Body text: 11 px
    Label: 28 px
    Menu: 18 px (a) Body text (b) Label (c) Hint (d) Menu
14. 14.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
15. 15.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
16. 16.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
18. 18.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
19. 19.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
20. 20.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
21. 21.♿ 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
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Caption: 17 px
    Footer: 20 px (a) Menu (b) Footer (c) Caption
23. 23.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) tiny tap areas (d) text that can grow
24. 24.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Title: 11 px
    Footer: 23 px
26. 26.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
27. 27.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
28. 28.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Menu: 18 px
    Caption: 14 px (a) Hint (b) Caption (c) Menu
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Footer: 17 px
    Hint: 14 px
    Title: 20 px
    Menu: 23 px (a) Footer (b) Body text (c) Hint (d) Title
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Title: 25 px
    Hint: 27 px (a) Menu (b) Hint (c) Title
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Menu: 13 px
    Title: 12 px
    Label: 10 px
33. 33.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
34. 34.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 13 px
    Menu: 20 px
    Hint: 20 px
    Label: 17 px (a) Hint (b) Menu (c) Caption (d) Label
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Caption: 27 px
    Label: 12 px
    Hint: 16 px
    Menu: 27 px (a) Body text (b) Caption (c) Label (d) Hint
38. 38.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
39. 39.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) colour as the only clue (d) big touch targets
40. 40.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?

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