App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 763 · 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) icons with no labels (b) text that can grow (c) colour as the only clue (d) tiny tap areas
2. 2.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
3. 3.Which of these makes the app harder to use? (a) big touch targets (b) fast-flashing lights (c) text that can grow (d) captions on videos
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 9 px
   Menu: 24 px
   Hint: 19 px
   Title: 25 px (a) Title (b) Caption (c) Menu (d) Hint
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 14 px
   Caption: 16 px
   Title: 24 px (a) Body text (b) Title (c) Caption
6. 6.Which of these helps everyone use the app? (a) colour as the only clue (b) labels on every icon (c) tiny tap areas (d) fast-flashing lights
7. 7.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) captions on videos (d) big touch targets
8. 8.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
9. 9.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
10. 10.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Menu: 10 px
    Label: 25 px (a) Hint (b) Menu (c) Label
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 22 px
    Label: 9 px
    Footer: 17 px (a) Label (b) Title (c) Footer
13. 13.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
14. 14.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
15. 15.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
17. 17.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
18. 18.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Body text: 10 px
    Label: 24 px (a) Body text (b) Footer (c) Label
20. 20.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
21. 21.♿ A screen has 7 icon buttons. Only 4 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?
    Label: 11 px
    Body text: 17 px
    Hint: 20 px
    Caption: 24 px
    Footer: 17 px (a) Hint (b) Body text (c) Label (d) Caption
23. 23.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) fast-flashing lights (b) captions on videos (c) big touch targets (d) strong colour contrast
25. 25.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
26. 26.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
27. 27.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
28. 28.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
29. 29.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
30. 30.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) tiny tap areas (d) text that can grow
32. 32.🔍 Which is the odd one out? (a) colour as the only clue (b) text that can grow (c) strong colour contrast (d) captions on videos
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Label: 20 px
    Hint: 14 px
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Title: 28 px
    Hint: 10 px
    Footer: 22 px
    Caption: 23 px (a) Hint (b) Footer (c) Menu (d) Title
35. 35.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 21 px
    Title: 15 px
    Body text: 18 px
    Footer: 10 px
    Menu: 23 px
37. 37.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 12 px
    Body text: 21 px
    Title: 24 px
    Caption: 21 px (a) Body text (b) Caption (c) Hint (d) Title
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Body text: 17 px
    Menu: 13 px
    Hint: 22 px
    Title: 16 px (a) Body text (b) Label (c) Hint (d) Menu
40. 40.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) icons with no labels

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