App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 569 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 9 px
   Title: 17 px
   Caption: 19 px (a) Title (b) Caption (c) Footer
2. 2.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
3. 3.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
5. 5.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) tiny tap areas (d) sudden loud sounds
6. 6.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
7. 7.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
8. 8.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 18 px
   Body text: 18 px
   Menu: 18 px
   Caption: 11 px
   Title: 17 px (a) Body text (b) Menu (c) Label (d) Caption
10. 10.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) tiny tap areas (d) labels on every icon
11. 11.Which of these helps everyone use the app? (a) colour as the only clue (b) text that can grow (c) fast-flashing lights (d) icons with no labels
12. 12.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 26 px
    Body text: 24 px
    Label: 19 px
    Hint: 22 px
    Caption: 13 px (a) Label (b) Menu (c) Caption (d) Body text
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Hint: 24 px
    Caption: 24 px
    Title: 15 px
    Label: 11 px
15. 15.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
16. 16.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
17. 17.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
18. 18.Which of these makes the app harder to use? (a) captions on videos (b) sudden loud sounds (c) labels on every icon (d) big touch targets
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Label: 25 px
    Caption: 13 px (a) Caption (b) Label (c) Menu
20. 20.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
21. 21.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
22. 22.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Caption: 10 px
    Title: 23 px
    Label: 14 px
    Footer: 19 px
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Caption: 16 px
    Title: 19 px
    Label: 25 px
    Body text: 11 px (a) Caption (b) Title (c) Body text (d) Hint
25. 25.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Title: 17 px
    Caption: 12 px
    Hint: 22 px
    Label: 19 px (a) Caption (b) Hint (c) Title (d) Menu
27. 27.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
28. 28.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) colour as the only clue (d) labels on every icon
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Body text: 28 px
    Title: 12 px
    Footer: 28 px
    Hint: 18 px (a) Menu (b) Title (c) Body text (d) Footer
30. 30.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
31. 31.♿ A screen has 7 icon buttons. Only 3 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: sudden loud sounds? (a) helps everyone (b) makes it harder
33. 33.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Body text: 20 px
    Caption: 10 px
    Menu: 23 px (a) Caption (b) Menu (c) Body text (d) Hint
35. 35.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Label: 16 px
    Title: 22 px
    Hint: 19 px (a) Hint (b) Title (c) Label (d) Body text
37. 37.♿ A screen has 5 icon buttons. Only 1 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) fast-flashing lights (b) sudden loud sounds (c) colour as the only clue (d) strong colour contrast
39. 39.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) colour as the only clue (d) captions on videos
40. 40.True or false: “text that can grow” makes the app harder to use. (a) True (b) False

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