App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 771 · 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.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
2. 2.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 10 px
   Label: 28 px
   Menu: 23 px
   Title: 24 px (a) Menu (b) Title (c) Caption (d) Label
4. 4.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) sudden loud sounds
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 19 px
   Label: 14 px
   Footer: 20 px (a) Footer (b) Label (c) Menu
6. 6.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
7. 7.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) colour as the only clue (d) captions on videos
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 27 px
   Label: 23 px
   Body text: 10 px
   Title: 18 px (a) Label (b) Body text (c) Title (d) Footer
9. 9.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
10. 10.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
11. 11.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) strong colour contrast (d) tiny tap areas
12. 12.Which of these helps everyone use the app? (a) strong colour contrast (b) sudden loud sounds (c) fast-flashing lights (d) icons with no labels
13. 13.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 14 px
    Body text: 10 px
    Caption: 16 px
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Hint: 17 px
    Body text: 13 px
    Label: 11 px
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Label: 14 px
    Caption: 18 px
    Title: 23 px
    Menu: 27 px (a) Label (b) Caption (c) Title (d) Hint
18. 18.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 14 px
    Caption: 21 px
    Title: 10 px
    Label: 16 px
    Body text: 23 px
20. 20.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) labels on every icon (d) icons with no labels
21. 21.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Hint: 17 px
    Menu: 13 px
    Title: 10 px
    Caption: 14 px
23. 23.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
24. 24.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
25. 25.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) colour as the only clue (d) strong colour contrast
27. 27.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
28. 28.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) fast-flashing lights (d) captions on videos
29. 29.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
30. 30.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
31. 31.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) fast-flashing lights (d) icons with no labels
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Footer: 10 px
    Menu: 20 px
33. 33.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
34. 34.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Label: 15 px
    Caption: 21 px
    Title: 10 px
    Body text: 16 px
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 22 px
    Footer: 20 px
    Hint: 13 px (a) Footer (b) Hint (c) Label
37. 37.Which of these makes the app harder to use? (a) labels on every icon (b) sudden loud sounds (c) big touch targets (d) text that can grow
38. 38.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a sound (d) a long animation
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Menu: 14 px
    Hint: 21 px
    Body text: 17 px
40. 40.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True

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