App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 119 · 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) helps everyone (b) makes it harder
2. 2.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
3. 3.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
4. 4.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
5. 5.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
6. 6.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
7. 7.♿ Does this help everyone, or make the app harder to use: icons with no labels? (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?
   Footer: 20 px
   Title: 24 px
   Body text: 14 px
   Label: 25 px (a) Footer (b) Label (c) Title (d) Body text
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 12 px
   Caption: 21 px
   Label: 15 px
   Menu: 17 px
10. 10.🔍 Which is the odd one out? (a) tiny tap areas (b) strong colour contrast (c) sudden loud sounds (d) colour as the only clue
11. 11.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) text that can grow (d) captions on videos
12. 12.Which of these makes the app harder to use? (a) fast-flashing lights (b) labels on every icon (c) big touch targets (d) captions on videos
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) the battery (d) fast typists
14. 14.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) big touch targets (d) captions on videos
15. 15.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
16. 16.Which of these makes the app harder to use? (a) text that can grow (b) sudden loud sounds (c) captions on videos (d) big touch targets
17. 17.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Menu: 16 px
    Body text: 26 px
    Label: 12 px (a) Body text (b) Menu (c) Label (d) Title
19. 19.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
20. 20.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
21. 21.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) tiny tap areas (d) strong colour contrast
22. 22.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
23. 23.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Hint: 14 px
    Caption: 18 px
    Menu: 12 px
    Label: 14 px
25. 25.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
26. 26.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) captions on videos (d) colour as the only clue
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 24 px
    Caption: 25 px
    Title: 9 px
    Footer: 25 px
    Body text: 23 px (a) Menu (b) Footer (c) Caption (d) Title
28. 28.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Footer: 19 px
    Menu: 27 px (a) Footer (b) Menu (c) Body text
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Caption: 11 px
    Menu: 22 px
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 18 px
    Caption: 20 px
    Title: 18 px
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Caption: 19 px
    Menu: 20 px
    Hint: 14 px
33. 33.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Body text: 18 px
    Footer: 9 px
    Caption: 26 px (a) Footer (b) Hint (c) Body text (d) Caption
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Menu: 13 px
    Caption: 12 px
    Hint: 14 px
    Body text: 21 px
36. 36.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) text that can grow
37. 37.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
38. 38.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
39. 39.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Caption: 13 px
    Menu: 13 px

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