App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 784 · 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.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
2. 2.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
4. 4.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
5. 5.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
6. 6.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) captions on videos (d) fast-flashing lights
7. 7.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
8. 8.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
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.♿ A screen has 5 icon buttons. Only 2 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?
    Title: 20 px
    Hint: 21 px
    Body text: 21 px
    Caption: 13 px (a) Caption (b) Hint (c) Title (d) Body text
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Body text: 18 px
    Title: 16 px
    Footer: 12 px
13. 13.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) tiny tap areas (d) captions on videos
14. 14.Which of these helps everyone use the app? (a) fast-flashing lights (b) text that can grow (c) sudden loud sounds (d) icons with no labels
15. 15.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) sudden loud sounds (d) captions on videos
16. 16.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a bright colour (d) a text label
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Hint: 10 px
    Body text: 13 px
    Menu: 12 px
    Title: 15 px
18. 18.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) tiny tap areas (d) icons with no labels
19. 19.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) colour as the only clue
20. 20.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Footer: 14 px
    Label: 14 px
    Menu: 21 px
    Caption: 22 px
22. 22.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) strong colour contrast (d) fast-flashing lights
23. 23.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) text that can grow (d) big touch targets
24. 24.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) strong colour contrast (d) big touch targets
25. 25.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) labels on every icon
27. 27.Which of these makes the app harder to use? (a) big touch targets (b) sudden loud sounds (c) strong colour contrast (d) labels on every icon
28. 28.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
29. 29.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Caption: 24 px
    Hint: 22 px
    Title: 13 px
    Label: 22 px
31. 31.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
32. 32.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Hint: 14 px
    Menu: 21 px (a) Hint (b) Body text (c) Menu
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 11 px
    Hint: 27 px
    Body text: 21 px
    Caption: 20 px
    Label: 16 px (a) Caption (b) Hint (c) Footer (d) Body text
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Footer: 10 px
    Caption: 16 px
    Body text: 19 px
36. 36.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
37. 37.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
38. 38.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) strong colour contrast
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Title: 15 px
    Label: 19 px
40. 40.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder

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