App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 644 · 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) fast-flashing lights (b) strong colour contrast (c) big touch targets (d) text that can grow
2. 2.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) big touch targets (d) sudden loud sounds
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 25 px
   Label: 19 px
   Hint: 13 px
   Footer: 18 px
   Menu: 19 px (a) Label (b) Title (c) Footer (d) Hint
4. 4.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 14 px
   Footer: 16 px
   Menu: 23 px
6. 6.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
7. 7.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
8. 8.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
9. 9.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
10. 10.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) fast-flashing lights (d) captions on videos
11. 11.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Does this help everyone, or make the app harder to use: captions on videos? (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) helps everyone (b) makes it harder
14. 14.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
15. 15.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) text that can grow (d) sudden loud sounds
16. 16.♿ 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
17. 17.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
18. 18.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
20. 20.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) tiny tap areas (d) labels on every icon
21. 21.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to slow them down (d) to add colour
22. 22.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) colour as the only clue (d) labels on every icon
23. 23.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Menu: 19 px
    Title: 13 px
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Hint: 22 px
    Caption: 19 px
    Menu: 12 px
26. 26.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) captions on videos (d) colour as the only clue
27. 27.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
28. 28.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
29. 29.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Hint: 11 px
    Body text: 15 px
31. 31.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
32. 32.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 14 px
    Label: 12 px
    Footer: 24 px
34. 34.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) text that can grow (d) icons with no labels
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Label: 10 px
    Footer: 13 px
37. 37.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Footer: 19 px
    Title: 10 px
    Caption: 21 px (a) Caption (b) Footer (c) Body text (d) Title
39. 39.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) text that can grow (d) fast-flashing lights
40. 40.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?

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