App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 841 · 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 is the odd one out? (a) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) captions on videos
2. 2.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) strong colour contrast (d) tiny tap areas
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 21 px
   Label: 11 px
   Hint: 21 px
4. 4.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) fast-flashing lights (d) labels on every icon
6. 6.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) icons with no labels (d) text that can grow
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 18 px
   Body text: 23 px
   Hint: 19 px
   Menu: 15 px
   Footer: 16 px
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 16 px
   Title: 12 px
   Menu: 15 px
   Caption: 11 px
10. 10.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) sudden loud sounds (d) text that can grow
11. 11.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 16 px
    Caption: 21 px
    Title: 20 px
    Footer: 15 px
14. 14.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) fast-flashing lights (d) tiny tap areas
15. 15.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
16. 16.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to add colour (d) to slow them down
17. 17.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
18. 18.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
19. 19.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Label: 10 px
    Title: 28 px
    Caption: 18 px (a) Menu (b) Label (c) Title (d) Caption
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Hint: 28 px
    Footer: 25 px
    Title: 18 px (a) Hint (b) Title (c) Footer (d) Menu
22. 22.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
23. 23.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) strong colour contrast (d) captions on videos
24. 24.♿ 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
25. 25.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) text that can grow (d) strong colour contrast
26. 26.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
28. 28.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Caption: 10 px
    Hint: 12 px
    Footer: 23 px
30. 30.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
31. 31.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Body text: 24 px
    Footer: 20 px
    Label: 27 px
    Menu: 22 px (a) Caption (b) Body text (c) Label (d) Footer
33. 33.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
34. 34.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) fast-flashing lights (d) tiny tap areas
35. 35.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
37. 37.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Label: 20 px
    Menu: 9 px (a) Label (b) Menu (c) Caption
39. 39.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
40. 40.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?

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