App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 439 · 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) captions on videos (b) colour as the only clue (c) sudden loud sounds (d) fast-flashing lights
2. 2.Which of these makes the app harder to use? (a) colour as the only clue (b) labels on every icon (c) captions on videos (d) text that can grow
3. 3.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
4. 4.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 24 px
   Footer: 18 px
   Title: 12 px
   Caption: 15 px
6. 6.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) only the coder (d) nobody
7. 7.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
8. 8.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 17 px
   Hint: 11 px
   Body text: 22 px
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Label: 17 px
    Caption: 21 px
11. 11.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
12. 12.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (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?
    Caption: 27 px
    Title: 21 px
    Body text: 28 px
    Menu: 9 px (a) Caption (b) Body text (c) Title (d) Menu
14. 14.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
15. 15.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) colour-blind users (d) fast typists
16. 16.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
17. 17.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) sudden loud sounds (d) tiny tap areas
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Caption: 16 px
    Footer: 17 px (a) Footer (b) Title (c) Caption
19. 19.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) labels on every icon
20. 20.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
22. 22.Which of these makes the app harder to use? (a) fast-flashing lights (b) captions on videos (c) text that can grow (d) labels on every icon
23. 23.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) labels on every icon (d) sudden loud sounds
24. 24.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) tiny tap areas (d) labels on every icon
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Hint: 22 px
    Title: 26 px (a) Title (b) Menu (c) Hint
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Menu: 26 px
    Footer: 16 px
    Label: 22 px
    Body text: 23 px (a) Title (b) Label (c) Menu (d) Footer
27. 27.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
28. 28.Which of these helps everyone use the app? (a) icons with no labels (b) strong colour contrast (c) sudden loud sounds (d) fast-flashing lights
29. 29.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
30. 30.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) captions on videos (d) strong colour contrast
32. 32.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
34. 34.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
35. 35.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Caption: 16 px
    Label: 14 px (a) Label (b) Body text (c) Caption
37. 37.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) sudden loud sounds (d) strong colour contrast
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 17 px
    Label: 10 px
    Title: 13 px
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Caption: 12 px
    Hint: 10 px
40. 40.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) big touch targets (d) fast-flashing lights

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