App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 243 · 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: “fast-flashing lights” helps everyone use the app. (a) True (b) False
2. 2.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
3. 3.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
4. 4.Which of these helps everyone use the app? (a) text that can grow (b) tiny tap areas (c) colour as the only clue (d) sudden loud sounds
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 21 px
   Menu: 12 px
   Title: 15 px
   Footer: 18 px
6. 6.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) fast-flashing lights
8. 8.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) strong colour contrast (d) fast-flashing lights
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.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
11. 11.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) captions on videos (d) fast-flashing lights
12. 12.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
13. 13.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
14. 14.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
15. 15.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
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.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
18. 18.Which of these makes the app harder to use? (a) sudden loud sounds (b) labels on every icon (c) captions on videos (d) big touch targets
19. 19.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
20. 20.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) big touch targets (d) strong colour contrast
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Body text: 27 px
    Caption: 20 px
    Title: 9 px
    Menu: 26 px (a) Caption (b) Title (c) Hint (d) Body text
22. 22.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
23. 23.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
24. 24.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
25. 25.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) captions on videos (d) tiny tap areas
26. 26.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) labels on every icon (d) icons with no labels
27. 27.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Hint: 10 px
    Footer: 14 px
    Title: 14 px
    Menu: 10 px
29. 29.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) labels on every icon (d) big touch targets
30. 30.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) big touch targets (d) captions on videos
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Title: 20 px
    Hint: 19 px
    Caption: 20 px
32. 32.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ 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
34. 34.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
35. 35.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
36. 36.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Menu: 11 px
    Caption: 11 px
    Body text: 11 px
38. 38.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
39. 39.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
40. 40.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?

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