App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 627 · 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.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 13 px
   Title: 22 px
   Menu: 13 px
   Footer: 10 px
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 11 px
   Body text: 11 px
   Title: 22 px
4. 4.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 12 px
   Caption: 22 px
   Menu: 15 px
6. 6.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
7. 7.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) captions on videos (d) big touch targets
8. 8.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
9. 9.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) big touch targets (d) fast-flashing lights
10. 10.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) captions on videos (d) fast-flashing lights
12. 12.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) labels on every icon (d) icons with no labels
13. 13.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
14. 14.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
15. 15.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Title: 9 px
    Menu: 26 px
    Body text: 26 px (a) Title (b) Menu (c) Body text (d) Label
17. 17.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
18. 18.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Body text: 22 px
    Title: 28 px
    Menu: 16 px (a) Body text (b) Label (c) Menu (d) Title
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Menu: 14 px
    Footer: 20 px (a) Menu (b) Footer (c) Label
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Menu: 19 px
    Hint: 24 px
    Caption: 28 px
    Title: 10 px (a) Title (b) Hint (c) Label (d) Menu
22. 22.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
23. 23.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Caption: 10 px
    Hint: 10 px
    Label: 18 px
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Title: 26 px
    Label: 21 px (a) Label (b) Footer (c) Title
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Hint: 22 px
    Title: 9 px (a) Hint (b) Title (c) Body text
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Label: 16 px
    Hint: 20 px
    Caption: 18 px
    Title: 14 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Menu: 12 px
    Label: 12 px
    Body text: 22 px
29. 29.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
30. 30.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
31. 31.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
32. 32.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Title: 23 px
    Label: 26 px
    Caption: 26 px (a) Footer (b) Label (c) Title (d) Caption
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Label: 12 px
    Menu: 25 px
    Footer: 22 px
    Hint: 21 px (a) Footer (b) Label (c) Title (d) Menu
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Caption: 13 px
    Hint: 23 px (a) Hint (b) Body text (c) Caption
36. 36.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
37. 37.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Footer: 26 px
    Body text: 11 px (a) Footer (b) Menu (c) Body text
39. 39.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) fast-flashing lights (d) strong colour contrast
40. 40.Which of these makes the app harder to use? (a) sudden loud sounds (b) strong colour contrast (c) captions on videos (d) text that can grow

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