App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 406 · 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: colour as the only clue? (a) makes it harder (b) helps everyone
2. 2.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) takes photos (d) plays music
3. 3.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) fast-flashing lights (d) tiny tap areas
4. 4.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 19 px
   Menu: 10 px
   Label: 19 px
   Body text: 24 px (a) Label (b) Body text (c) Footer (d) Menu
6. 6.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
7. 7.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 10 px
   Body text: 20 px
   Footer: 20 px (a) Menu (b) Footer (c) Body text
9. 9.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
10. 10.Which of these helps everyone use the app? (a) colour as the only clue (b) big touch targets (c) sudden loud sounds (d) icons with no labels
11. 11.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
12. 12.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
13. 13.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) fast-flashing lights (d) captions on videos
14. 14.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
15. 15.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
16. 16.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Body text: 27 px
    Footer: 17 px (a) Footer (b) Title (c) Body text
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Body text: 12 px
    Hint: 10 px
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Label: 11 px
    Footer: 11 px
    Body text: 12 px
    Hint: 20 px
20. 20.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
22. 22.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
23. 23.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
24. 24.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
25. 25.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
26. 26.Which of these helps everyone use the app? (a) colour as the only clue (b) labels on every icon (c) tiny tap areas (d) icons with no labels
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 22 px
    Label: 23 px
    Caption: 14 px
    Body text: 25 px
    Menu: 16 px (a) Body text (b) Label (c) Title (d) Caption
28. 28.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) colour as the only clue (d) strong colour contrast
30. 30.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
31. 31.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
32. 32.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) sudden loud sounds (d) captions on videos
33. 33.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) big touch targets (d) fast-flashing lights
34. 34.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) icons with no labels (d) fast-flashing lights
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Label: 28 px
    Menu: 27 px
    Body text: 14 px
    Caption: 16 px (a) Menu (b) Hint (c) Body text (d) Label
36. 36.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
37. 37.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
38. 38.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Menu: 16 px
    Footer: 10 px
    Title: 15 px
    Caption: 24 px
40. 40.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) text that can grow (d) strong colour contrast

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