App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 348 · 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.♿ 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
2. 2.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) sudden loud sounds (d) colour as the only clue
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 11 px
   Body text: 24 px
   Caption: 10 px
   Footer: 12 px
   Title: 10 px
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 16 px
   Footer: 22 px
   Label: 19 px
5. 5.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) tiny tap areas (d) captions on videos
6. 6.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a text label (d) a bright colour
7. 7.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 28 px
   Menu: 18 px
   Hint: 12 px
   Body text: 24 px (a) Hint (b) Label (c) Menu (d) Body text
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 22 px
   Body text: 19 px
   Menu: 13 px
   Footer: 15 px
   Hint: 16 px
10. 10.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
11. 11.Which of these makes the app harder to use? (a) sudden loud sounds (b) captions on videos (c) text that can grow (d) labels on every icon
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.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Title: 22 px
    Menu: 17 px
    Body text: 24 px
15. 15.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) strong colour contrast (d) colour as the only clue
16. 16.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 22 px
    Caption: 22 px
    Body text: 11 px (a) Label (b) Caption (c) Body text
18. 18.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Title: 17 px
    Menu: 23 px
    Caption: 13 px (a) Title (b) Body text (c) Menu (d) Caption
20. 20.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
21. 21.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Body text: 13 px
    Menu: 17 px
23. 23.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) icons with no labels (d) big touch targets
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Label: 19 px
    Caption: 24 px
    Hint: 13 px (a) Caption (b) Hint (c) Label (d) Body text
25. 25.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
27. 27.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Caption: 13 px
    Menu: 13 px
    Label: 19 px
    Hint: 13 px
29. 29.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
30. 30.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
31. 31.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) labels on every icon (d) tiny tap areas
32. 32.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) labels on every icon (d) captions on videos
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Menu: 20 px
    Title: 21 px
    Caption: 27 px
    Footer: 17 px (a) Caption (b) Menu (c) Hint (d) Title
34. 34.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) plays music (d) makes text tiny
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Title: 24 px
    Body text: 18 px
36. 36.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
37. 37.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
38. 38.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
39. 39.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) icons with no labels (d) colour as the only clue
40. 40.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) fast-flashing lights (d) big touch targets

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