App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 630 · 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 helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) text that can grow (d) tiny tap areas
2. 2.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
3. 3.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) colour as the only clue
4. 4.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
5. 5.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
6. 6.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
7. 7.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) the battery (d) fast typists
8. 8.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 23 px
   Body text: 25 px
   Title: 19 px
   Label: 12 px (a) Hint (b) Label (c) Body text (d) Title
10. 10.Which of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) sudden loud sounds (d) fast-flashing lights
11. 11.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) text that can grow (d) tiny tap areas
12. 12.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) strong colour contrast
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Body text: 24 px
    Label: 16 px
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Hint: 22 px
    Caption: 20 px
15. 15.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) colour as the only clue (d) text that can grow
16. 16.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) captions on videos (d) fast-flashing lights
17. 17.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) sudden loud sounds (d) icons with no labels
18. 18.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
19. 19.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
20. 20.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
21. 21.♿ 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
22. 22.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
23. 23.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
24. 24.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Title: 18 px
    Body text: 27 px
    Hint: 20 px (a) Body text (b) Title (c) Footer (d) Hint
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Footer: 19 px
    Body text: 13 px
    Caption: 27 px
    Menu: 16 px (a) Caption (b) Footer (c) Body text (d) Title
27. 27.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) strong colour contrast (d) tiny tap areas
28. 28.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
29. 29.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Hint: 13 px
    Label: 12 px
    Menu: 14 px
31. 31.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
32. 32.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
33. 33.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) fast-flashing lights (d) icons with no labels
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Label: 12 px
    Body text: 21 px
    Hint: 12 px
    Title: 20 px
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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 23 px
    Hint: 14 px
    Body text: 24 px (a) Label (b) Body text (c) Hint
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 27 px
    Footer: 10 px
    Hint: 28 px (a) Hint (b) Footer (c) Caption
38. 38.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Body text: 17 px
    Caption: 27 px (a) Caption (b) Hint (c) Body text
40. 40.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) only the coder (d) nobody

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