App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 814 · 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.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
2. 2.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 14 px
   Hint: 16 px
   Body text: 21 px
   Caption: 12 px
4. 4.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
5. 5.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
6. 6.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
7. 7.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
8. 8.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Footer: 11 px
    Menu: 15 px
    Hint: 11 px
    Caption: 23 px
11. 11.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 26 px
    Label: 16 px
    Body text: 12 px
    Hint: 28 px
    Footer: 28 px (a) Body text (b) Menu (c) Hint (d) Label
13. 13.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
14. 14.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) icons with no labels (d) big touch targets
15. 15.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
17. 17.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
18. 18.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
19. 19.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) strong colour contrast (d) fast-flashing lights
20. 20.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
21. 21.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
22. 22.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) fast-flashing lights
23. 23.Which of these makes the app harder to use? (a) icons with no labels (b) big touch targets (c) captions on videos (d) labels on every icon
24. 24.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only the coder (d) only experts
26. 26.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Title: 20 px
    Label: 27 px
    Body text: 16 px
    Caption: 25 px (a) Title (b) Body text (c) Hint (d) Label
28. 28.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
29. 29.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
30. 30.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) captions on videos (d) colour as the only clue
31. 31.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
32. 32.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
33. 33.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Title: 21 px
    Body text: 22 px
    Caption: 12 px
    Menu: 12 px
35. 35.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
36. 36.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) big touch targets
37. 37.True or false: “fast-flashing lights” 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: 17 px
    Label: 19 px
    Caption: 20 px
    Hint: 14 px (a) Hint (b) Label (c) Caption (d) Body text
39. 39.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) icons with no labels (d) sudden loud sounds
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Hint: 23 px
    Footer: 14 px (a) Menu (b) Hint (c) Footer

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