App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 509 · 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.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
3. 3.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
4. 4.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
5. 5.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 14 px
   Caption: 20 px
   Title: 20 px
   Footer: 26 px
   Menu: 18 px (a) Footer (b) Label (c) Caption (d) Title
7. 7.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) fast-flashing lights
8. 8.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
9. 9.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
10. 10.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) captions on videos (d) tiny tap areas
12. 12.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
13. 13.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Body text: 25 px
    Caption: 9 px
    Footer: 23 px (a) Body text (b) Hint (c) Caption (d) Footer
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Caption: 13 px
    Hint: 23 px
    Label: 14 px
    Footer: 18 px
16. 16.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
18. 18.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) captions on videos (d) icons with no labels
19. 19.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
20. 20.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
21. 21.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Caption: 19 px
    Body text: 17 px
    Footer: 12 px
23. 23.Which of these makes the app harder to use? (a) fast-flashing lights (b) text that can grow (c) captions on videos (d) strong colour contrast
24. 24.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) strong colour contrast (d) fast-flashing lights
25. 25.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
26. 26.Which of these makes the app harder to use? (a) tiny tap areas (b) labels on every icon (c) big touch targets (d) strong colour contrast
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Label: 12 px
    Footer: 25 px (a) Label (b) Footer (c) Title
28. 28.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
29. 29.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) icons with no labels (d) colour as the only clue
30. 30.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) colour as the only clue (d) icons with no labels
31. 31.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 16 px
    Title: 11 px
    Body text: 13 px
    Label: 16 px
    Menu: 17 px
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Menu: 24 px
    Label: 10 px (a) Menu (b) Label (c) Caption
34. 34.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
35. 35.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) captions on videos (d) strong colour contrast
36. 36.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
37. 37.♿ 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
38. 38.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) fast-flashing lights (d) big touch targets
39. 39.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) big touch targets (d) colour as the only clue

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