App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 99 · 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 of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) strong colour contrast
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 19 px
   Caption: 23 px
   Hint: 26 px
   Body text: 10 px
   Footer: 23 px (a) Body text (b) Menu (c) Hint (d) Caption
3. 3.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
4. 4.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) labels on every icon
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 12 px
   Hint: 11 px
   Menu: 18 px
   Caption: 10 px
6. 6.Which of these makes the app harder to use? (a) text that can grow (b) tiny tap areas (c) big touch targets (d) strong colour contrast
7. 7.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
8. 8.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) labels on every icon (d) text that can grow
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 16 px
   Hint: 26 px
   Footer: 23 px
   Title: 13 px (a) Hint (b) Footer (c) Menu (d) Title
10. 10.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Title: 28 px
    Footer: 23 px
    Caption: 24 px
    Menu: 28 px (a) Caption (b) Title (c) Hint (d) Footer
12. 12.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) strong colour contrast (d) colour as the only clue
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Caption: 16 px
    Footer: 21 px
    Title: 13 px
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Caption: 22 px
    Footer: 21 px
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Footer: 13 px
    Body text: 16 px (a) Body text (b) Label (c) Footer
16. 16.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) sudden loud sounds (d) captions on videos
17. 17.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) big touch targets (d) fast-flashing lights
18. 18.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
19. 19.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
20. 20.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) big touch targets (d) tiny tap areas
21. 21.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Label: 19 px
    Footer: 13 px (a) Hint (b) Label (c) Footer
23. 23.♿ A screen has 5 icon buttons. Only 2 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: “colour as the only clue” helps everyone use the app. (a) True (b) False
26. 26.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
27. 27.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
28. 28.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Footer: 19 px
    Label: 23 px
30. 30.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 22 px
    Body text: 25 px
    Hint: 19 px
    Caption: 14 px
    Menu: 16 px (a) Caption (b) Hint (c) Body text (d) Footer
32. 32.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
33. 33.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) icons with no labels (d) labels on every icon
34. 34.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a long animation (d) a bright colour
35. 35.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
36. 36.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
38. 38.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
39. 39.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?

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