App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 757 · 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 of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) icons with no labels
2. 2.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 27 px
   Body text: 11 px
   Caption: 19 px
   Title: 22 px
   Hint: 24 px (a) Body text (b) Footer (c) Title (d) Caption
4. 4.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a sound (d) a bright colour
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 28 px
   Caption: 11 px
   Menu: 23 px (a) Caption (b) Menu (c) Hint
6. 6.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
7. 7.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) labels on every icon
8. 8.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) tiny tap areas (d) colour as the only clue
9. 9.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) colour as the only clue (d) text that can grow
10. 10.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 14 px
    Title: 14 px
    Body text: 23 px
    Label: 20 px
    Footer: 20 px
12. 12.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
13. 13.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) text that can grow
14. 14.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) icons with no labels (d) captions on videos
15. 15.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) labels on every icon (d) strong colour contrast
16. 16.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
17. 17.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Caption: 28 px
    Hint: 25 px
    Footer: 14 px (a) Caption (b) Hint (c) Body text (d) Footer
19. 19.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
20. 20.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
21. 21.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Footer: 22 px
    Title: 23 px
23. 23.Which of these makes the app harder to use? (a) colour as the only clue (b) text that can grow (c) labels on every icon (d) big touch targets
24. 24.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
25. 25.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Body text: 18 px
    Label: 28 px
    Menu: 23 px (a) Menu (b) Label (c) Body text (d) Hint
27. 27.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
28. 28.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
30. 30.Which of these helps everyone use the app? (a) big touch targets (b) tiny tap areas (c) colour as the only clue (d) sudden loud sounds
31. 31.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
32. 32.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights
33. 33.♿ A screen has 9 icon buttons. Only 8 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. How many texts on this screen are too small?
    Footer: 23 px
    Hint: 23 px
    Body text: 22 px
    Menu: 17 px
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Menu: 27 px
    Footer: 19 px (a) Footer (b) Menu (c) Hint
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Title: 15 px
    Caption: 24 px
    Menu: 22 px
    Hint: 11 px
37. 37.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Body text: 15 px
    Title: 10 px
39. 39.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
40. 40.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) labels on every icon

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