App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 775 · 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.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
2. 2.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
3. 3.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
4. 4.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) captions on videos (d) strong colour contrast
5. 5.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) fast-flashing lights (d) strong colour contrast
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 25 px
   Caption: 9 px
   Menu: 28 px
   Hint: 23 px
   Body text: 27 px (a) Menu (b) Caption (c) Hint (d) Footer
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 10 px
   Body text: 28 px
   Footer: 25 px
   Title: 24 px (a) Label (b) Footer (c) Title (d) Body text
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 18 px
   Title: 19 px
   Hint: 16 px
9. 9.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
10. 10.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
11. 11.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
12. 12.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
13. 13.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
14. 14.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) colour as the only clue (d) tiny tap areas
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Menu: 11 px
    Body text: 14 px
    Caption: 20 px
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 22 px
    Label: 23 px
    Caption: 10 px
    Body text: 18 px
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Body text: 20 px
    Footer: 22 px
    Hint: 20 px
18. 18.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
19. 19.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
20. 20.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Title: 11 px
    Footer: 15 px
    Hint: 20 px
    Body text: 19 px
22. 22.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) text that can grow (d) big touch targets
23. 23.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
24. 24.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
25. 25.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) sudden loud sounds (d) tiny tap areas
26. 26.Which of these helps everyone use the app? (a) text that can grow (b) tiny tap areas (c) icons with no labels (d) fast-flashing lights
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Caption: 19 px
    Label: 19 px (a) Caption (b) Label (c) Menu
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Footer: 13 px
    Title: 16 px (a) Hint (b) Title (c) Footer
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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Title: 12 px
    Footer: 17 px (a) Title (b) Caption (c) Footer
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Title: 12 px
    Body text: 26 px
    Menu: 28 px (a) Body text (b) Menu (c) Title (d) Hint
32. 32.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
33. 33.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
34. 34.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) big touch targets (d) colour as the only clue
35. 35.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) labels on every icon (d) icons with no labels
36. 36.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Title: 20 px
    Menu: 13 px
    Body text: 16 px
    Caption: 21 px
38. 38.Which of these makes the app harder to use? (a) text that can grow (b) sudden loud sounds (c) captions on videos (d) strong colour contrast
39. 39.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
40. 40.Which of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) sudden loud sounds (d) fast-flashing lights

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