App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 809 · 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.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) sudden loud sounds (d) strong colour contrast
3. 3.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) labels on every icon (d) big touch targets
4. 4.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
5. 5.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) captions on videos
6. 6.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) labels on every icon (d) text that can grow
7. 7.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) captions on videos (d) text that can grow
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 9 px
   Footer: 25 px
   Hint: 26 px (a) Body text (b) Hint (c) Footer
9. 9.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
10. 10.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
11. 11.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
12. 12.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) to hide the sound (d) so anyone can follow
13. 13.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a sound (d) a long animation
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Menu: 12 px
    Body text: 25 px
    Label: 23 px (a) Title (b) Label (c) Menu (d) Body text
15. 15.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
16. 16.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
18. 18.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
19. 19.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Label: 20 px
    Caption: 28 px (a) Label (b) Caption (c) Footer
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Title: 12 px
    Hint: 17 px
    Body text: 23 px
    Menu: 23 px (a) Title (b) Body text (c) Caption (d) Hint
22. 22.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Body text: 11 px
    Label: 28 px (a) Body text (b) Label (c) Caption
24. 24.Which of these helps everyone use the app? (a) sudden loud sounds (b) strong colour contrast (c) fast-flashing lights (d) icons with no labels
25. 25.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Footer: 11 px
    Body text: 22 px
    Title: 18 px (a) Label (b) Title (c) Body text (d) Footer
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 24 px
    Caption: 20 px
    Title: 22 px
28. 28.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Footer: 22 px
    Title: 12 px (a) Caption (b) Footer (c) Title
30. 30.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the server (d) the battery
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Caption: 16 px
    Title: 11 px
32. 32.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
33. 33.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) sudden loud sounds (d) tiny tap areas
35. 35.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
36. 36.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) icons with no labels (d) sudden loud sounds
37. 37.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
38. 38.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Body text: 23 px
    Caption: 17 px
    Hint: 10 px
    Footer: 24 px
40. 40.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone

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