App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 724 · 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 makes the app harder to use? (a) colour as the only clue (b) strong colour contrast (c) captions on videos (d) text that can grow
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 18 px
   Hint: 19 px
   Title: 11 px
   Body text: 16 px (a) Footer (b) Title (c) Hint (d) Body text
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 23 px
   Caption: 24 px
   Menu: 17 px
4. 4.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
5. 5.♿ A screen has 12 icon buttons. Only 4 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: big touch targets? (a) helps everyone (b) makes it harder
8. 8.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) big touch targets (d) tiny tap areas
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
10. 10.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
11. 11.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) tiny tap areas (d) text that can grow
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Label: 23 px
    Title: 21 px
    Body text: 19 px
    Hint: 24 px (a) Label (b) Body text (c) Title (d) Footer
13. 13.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) big touch targets (d) sudden loud sounds
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Hint: 24 px
    Caption: 23 px
    Menu: 18 px
15. 15.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) text that can grow
17. 17.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
18. 18.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
19. 19.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
20. 20.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
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.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
23. 23.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Label: 10 px
    Footer: 15 px
    Caption: 12 px
25. 25.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
26. 26.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Title: 15 px
    Label: 19 px
28. 28.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
29. 29.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) labels on every icon (d) sudden loud sounds
31. 31.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) strong colour contrast (d) sudden loud sounds
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Footer: 14 px
    Hint: 16 px (a) Footer (b) Caption (c) Hint
33. 33.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Body text: 10 px
    Hint: 19 px (a) Hint (b) Menu (c) Body text
35. 35.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Footer: 11 px
    Menu: 18 px (a) Caption (b) Footer (c) Menu
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Label: 20 px
    Caption: 27 px
    Footer: 11 px
    Menu: 22 px (a) Caption (b) Hint (c) Label (d) Footer
38. 38.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
39. 39.Which of these makes the app harder to use? (a) icons with no labels (b) text that can grow (c) labels on every icon (d) captions on videos
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Menu: 25 px
    Hint: 19 px
    Footer: 19 px
    Caption: 11 px (a) Hint (b) Menu (c) Body text (d) Caption

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