App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 123 · 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.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 16 px
   Footer: 10 px
   Menu: 26 px (a) Footer (b) Menu (c) Body text
3. 3.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 9 px
   Title: 18 px
   Body text: 20 px
   Caption: 27 px (a) Title (b) Hint (c) Body text (d) Caption
5. 5.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 20 px
   Label: 20 px
   Footer: 17 px
7. 7.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
8. 8.Which of these helps everyone use the app? (a) colour as the only clue (b) strong colour contrast (c) tiny tap areas (d) sudden loud sounds
9. 9.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
10. 10.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Title: 10 px
    Body text: 18 px
    Hint: 25 px
    Label: 27 px (a) Body text (b) Hint (c) Caption (d) Title
12. 12.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
13. 13.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Title: 10 px
    Menu: 22 px (a) Menu (b) Label (c) Title
15. 15.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
16. 16.True or false: “strong colour contrast” 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?
    Footer: 19 px
    Menu: 9 px
    Label: 19 px (a) Label (b) Menu (c) Footer
18. 18.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
19. 19.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
20. 20.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
21. 21.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) icons with no labels (d) big touch targets
22. 22.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) tiny tap areas (d) sudden loud sounds
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Menu: 12 px
    Title: 19 px
24. 24.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) strong colour contrast (d) labels on every icon
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 14 px
    Body text: 26 px
    Label: 27 px (a) Body text (b) Label (c) Caption
26. 26.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
27. 27.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) fast-flashing lights (d) labels on every icon
28. 28.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) tiny tap areas
29. 29.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) sudden loud sounds (d) labels on every icon
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Title: 23 px
    Hint: 25 px
    Body text: 13 px
    Caption: 19 px (a) Title (b) Hint (c) Body text (d) Footer
31. 31.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
32. 32.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) nobody (d) only experts
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Body text: 15 px
    Label: 18 px
34. 34.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) captions on videos (d) strong colour contrast
35. 35.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
36. 36.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
37. 37.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) labels on every icon
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Menu: 21 px
    Title: 11 px
39. 39.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) icons with no labels
40. 40.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False

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