App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 172 · 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) labels on every icon (b) tiny tap areas (c) text that can grow (d) captions on videos
2. 2.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
3. 3.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
4. 4.Which of these helps everyone use the app? (a) sudden loud sounds (b) strong colour contrast (c) fast-flashing lights (d) icons with no labels
5. 5.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
6. 6.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
7. 7.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
8. 8.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
9. 9.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Caption: 9 px
    Title: 17 px (a) Caption (b) Body text (c) Title
11. 11.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
12. 12.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
13. 13.Which of these makes the app harder to use? (a) strong colour contrast (b) colour as the only clue (c) text that can grow (d) big touch targets
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Label: 17 px
    Body text: 15 px
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Caption: 13 px
    Menu: 11 px
    Label: 16 px
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Hint: 18 px
    Title: 10 px
17. 17.♿ 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
18. 18.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) to hide the sound (d) so anyone can follow
19. 19.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
20. 20.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Label: 27 px
    Footer: 19 px
    Hint: 12 px (a) Hint (b) Label (c) Caption (d) Footer
22. 22.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
23. 23.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
24. 24.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) labels on every icon
25. 25.Which of these helps everyone use the app? (a) labels on every icon (b) icons with no labels (c) sudden loud sounds (d) colour as the only clue
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) colour as the only clue (d) icons with no labels
27. 27.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) strong colour contrast (d) big touch targets
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Label: 22 px
    Body text: 16 px
    Title: 17 px
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Label: 13 px
    Title: 22 px
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Hint: 27 px
    Body text: 27 px
    Caption: 22 px
    Label: 11 px (a) Body text (b) Hint (c) Label (d) Footer
31. 31.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
33. 33.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
34. 34.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
35. 35.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (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?
    Caption: 20 px
    Hint: 20 px
    Footer: 17 px
    Title: 18 px
37. 37.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
38. 38.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) fast-flashing lights (d) strong colour contrast
39. 39.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
40. 40.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) tiny tap areas (d) colour as the only clue

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