App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 773 · 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) colour as the only clue (b) tiny tap areas (c) big touch targets (d) icons with no labels
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 14 px
   Footer: 14 px
   Hint: 21 px
   Caption: 10 px
   Menu: 17 px
3. 3.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) labels on every icon (d) tiny tap areas
4. 4.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) tiny tap areas (d) captions on videos
6. 6.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) text that can grow (d) sudden loud sounds
8. 8.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) colour as the only clue (d) strong colour contrast
9. 9.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
10. 10.Which of these makes the app harder to use? (a) fast-flashing lights (b) strong colour contrast (c) text that can grow (d) labels on every icon
11. 11.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
12. 12.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
13. 13.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
14. 14.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Title: 22 px
    Hint: 25 px
    Body text: 19 px
    Footer: 14 px (a) Hint (b) Label (c) Title (d) Footer
16. 16.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
17. 17.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) colour as the only clue (d) sudden loud sounds
18. 18.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Hint: 27 px
    Label: 14 px
    Body text: 16 px (a) Label (b) Hint (c) Menu (d) Body text
20. 20.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) labels on every icon (d) icons with no labels
21. 21.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Hint: 20 px
    Label: 10 px
    Footer: 12 px
23. 23.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Footer: 25 px
    Caption: 17 px
    Body text: 28 px
    Menu: 28 px (a) Footer (b) Caption (c) Body text (d) Label
25. 25.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) icons with no labels (d) strong colour contrast
26. 26.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
27. 27.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a sound (d) a long animation
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Title: 11 px
    Caption: 20 px
    Menu: 13 px
29. 29.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
30. 30.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
31. 31.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) labels on every icon (d) fast-flashing lights
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Title: 24 px
    Hint: 26 px
    Body text: 28 px
    Footer: 25 px (a) Label (b) Hint (c) Title (d) Body text
33. 33.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) fast-flashing lights (d) strong colour contrast
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Title: 17 px
    Label: 20 px (a) Menu (b) Title (c) Label
35. 35.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) text that can grow (d) fast-flashing lights
36. 36.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Menu: 24 px
    Body text: 27 px (a) Body text (b) Menu (c) Label
38. 38.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
39. 39.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
40. 40.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True

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