App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 623 · 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: “sudden loud sounds” helps everyone use the app. (a) True (b) False
2. 2.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
3. 3.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) captions on videos (d) icons with no labels
4. 4.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
5. 5.♿ What does a screen reader do? (a) takes photos (b) plays music (c) reads the screen aloud (d) makes text tiny
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 16 px
   Label: 19 px
   Footer: 9 px (a) Footer (b) Label (c) Hint
7. 7.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
8. 8.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) text that can grow (d) icons with no labels
9. 9.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Hint: 23 px
    Title: 16 px
    Caption: 17 px
    Footer: 17 px
11. 11.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Hint: 9 px
    Footer: 25 px
    Caption: 23 px (a) Hint (b) Caption (c) Body text (d) Footer
13. 13.♿ A screen has 10 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: colour as the only clue? (a) helps everyone (b) makes it harder
15. 15.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
16. 16.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) tiny tap areas (d) sudden loud sounds
17. 17.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
18. 18.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
19. 19.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) strong colour contrast
20. 20.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 18 px
    Label: 18 px
    Hint: 18 px
    Body text: 21 px
23. 23.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) sudden loud sounds (d) colour as the only clue
24. 24.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
25. 25.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) labels on every icon (d) sudden loud sounds
26. 26.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
27. 27.Which of these makes the app harder to use? (a) fast-flashing lights (b) labels on every icon (c) big touch targets (d) captions on videos
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Body text: 21 px
    Hint: 26 px
    Title: 28 px
    Caption: 18 px (a) Body text (b) Title (c) Footer (d) Hint
29. 29.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
31. 31.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) captions on videos (d) tiny tap areas
32. 32.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
33. 33.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) captions on videos
34. 34.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
35. 35.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) big touch targets (d) tiny tap areas
36. 36.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) tiny tap areas (d) strong colour contrast
37. 37.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
38. 38.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) big touch targets (d) captions on videos
39. 39.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) sudden loud sounds (d) big touch targets
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Title: 21 px
    Caption: 28 px
    Body text: 13 px (a) Title (b) Caption (c) Hint (d) Body text

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