App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 721 · 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) colour as the only clue (b) text that can grow (c) sudden loud sounds (d) tiny tap areas
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 17 px
   Body text: 24 px
   Title: 9 px
   Menu: 16 px (a) Menu (b) Label (c) Title (d) Body text
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 13 px
   Footer: 24 px
   Caption: 24 px
4. 4.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
5. 5.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) big touch targets (d) fast-flashing lights
6. 6.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
7. 7.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) fast-flashing lights (d) icons with no labels
8. 8.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) text that can grow (d) icons with no labels
9. 9.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) strong colour contrast (d) tiny tap areas
10. 10.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Menu: 16 px
    Hint: 9 px (a) Footer (b) Hint (c) Menu
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Caption: 14 px
    Label: 15 px
    Title: 10 px
    Hint: 23 px
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
14. 14.♿ 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
15. 15.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
16. 16.Which of these helps everyone use the app? (a) fast-flashing lights (b) strong colour contrast (c) colour as the only clue (d) sudden loud sounds
17. 17.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
18. 18.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Footer: 13 px
    Menu: 20 px
20. 20.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
21. 21.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Menu: 14 px
    Caption: 24 px (a) Hint (b) Caption (c) Menu
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Hint: 10 px
    Menu: 20 px
    Title: 13 px
    Footer: 23 px
24. 24.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Body text: 23 px
    Caption: 21 px
    Footer: 26 px
    Title: 17 px (a) Footer (b) Body text (c) Label (d) Caption
26. 26.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
28. 28.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) labels on every icon (d) icons with no labels
29. 29.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
30. 30.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
31. 31.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
32. 32.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) fast-flashing lights (d) text that can grow
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Hint: 11 px
    Caption: 14 px
34. 34.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Label: 11 px
    Body text: 12 px
    Footer: 12 px
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Label: 13 px
    Caption: 24 px
    Footer: 17 px
37. 37.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Label: 16 px
    Caption: 17 px
    Title: 21 px
    Hint: 20 px
39. 39.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Title: 20 px
    Body text: 24 px (a) Label (b) Body text (c) Title

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