App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 519 · 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. How many texts on this screen are too small?
   Label: 11 px
   Title: 23 px
   Body text: 20 px
   Hint: 10 px
   Footer: 20 px
2. 2.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
3. 3.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
4. 4.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) colour as the only clue (d) text that can grow
5. 5.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
6. 6.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 24 px
   Footer: 25 px
   Caption: 13 px (a) Footer (b) Body text (c) Caption
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 11 px
   Title: 23 px
   Menu: 20 px
   Label: 17 px
   Hint: 17 px (a) Title (b) Caption (c) Label (d) Menu
9. 9.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) labels on every icon (d) tiny tap areas
10. 10.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
11. 11.Which of these makes the app harder to use? (a) strong colour contrast (b) sudden loud sounds (c) labels on every icon (d) text that can grow
12. 12.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
13. 13.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Footer: 23 px
    Title: 23 px
    Menu: 16 px
    Body text: 16 px (a) Title (b) Label (c) Footer (d) Menu
15. 15.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
16. 16.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Caption: 13 px
    Menu: 21 px
18. 18.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
19. 19.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
20. 20.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
21. 21.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
22. 22.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
23. 23.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
25. 25.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Hint: 21 px
    Label: 26 px
    Body text: 14 px
    Footer: 28 px (a) Hint (b) Menu (c) Label (d) Body text
27. 27.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
28. 28.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) tiny tap areas (d) text that can grow
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Body text: 14 px
    Footer: 14 px
31. 31.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Body text: 13 px
    Label: 10 px
    Title: 15 px
    Menu: 23 px
33. 33.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) strong colour contrast (d) fast-flashing lights
34. 34.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
35. 35.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
37. 37.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) labels on every icon (d) colour as the only clue
38. 38.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Body text: 22 px
    Footer: 16 px
40. 40.True or false: “big touch targets” helps everyone use the app. (a) True (b) False

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