App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 103 · 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 of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) colour as the only clue (d) sudden loud sounds
2. 2.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) labels on every icon (d) tiny tap areas
3. 3.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
4. 4.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 28 px
   Body text: 17 px
   Label: 13 px
   Footer: 21 px (a) Footer (b) Label (c) Body text (d) Title
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 16 px
   Menu: 17 px
   Title: 13 px
   Caption: 18 px
   Footer: 20 px (a) Caption (b) Menu (c) Hint (d) Title
7. 7.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
9. 9.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
10. 10.Which of these makes the app harder to use? (a) captions on videos (b) colour as the only clue (c) labels on every icon (d) text that can grow
11. 11.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
12. 12.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 10 px
    Menu: 16 px
    Body text: 23 px (a) Menu (b) Body text (c) Caption
14. 14.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) sudden loud sounds
16. 16.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Hint: 22 px
    Caption: 23 px (a) Hint (b) Body text (c) Caption
18. 18.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) so anyone can follow (d) to hide the sound
19. 19.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Body text: 16 px
    Hint: 21 px
    Label: 16 px
    Title: 19 px
21. 21.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) big touch targets (d) strong colour contrast
22. 22.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Footer: 23 px
    Title: 11 px
    Label: 17 px
    Body text: 13 px
24. 24.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
25. 25.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
26. 26.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) tiny tap areas (d) colour as the only clue
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Label: 13 px
    Menu: 13 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 23 px
    Hint: 13 px
    Label: 16 px
    Menu: 23 px
    Body text: 12 px
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Label: 10 px
    Footer: 21 px (a) Footer (b) Label (c) Title
30. 30.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) sudden loud sounds
31. 31.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) strong colour contrast (d) icons with no labels
32. 32.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) icons with no labels (d) labels on every icon
34. 34.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) captions on videos (d) colour as the only clue
35. 35.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
36. 36.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
38. 38.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
39. 39.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) big touch targets
40. 40.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone

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