App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 821 · 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. How many texts on this screen are too small?
   Caption: 19 px
   Body text: 21 px
   Menu: 23 px
   Title: 18 px
   Hint: 18 px
3. 3.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to add colour (d) to hide the sound
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 15 px
   Title: 18 px
   Label: 23 px
5. 5.Which of these makes the app harder to use? (a) colour as the only clue (b) strong colour contrast (c) big touch targets (d) text that can grow
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 26 px
   Label: 18 px
   Caption: 24 px
   Menu: 20 px
   Hint: 13 px (a) Label (b) Caption (c) Hint (d) Title
7. 7.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 27 px
   Title: 13 px
   Menu: 20 px
   Body text: 20 px
   Label: 23 px (a) Body text (b) Hint (c) Title (d) Menu
9. 9.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
10. 10.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
12. 12.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
13. 13.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
14. 14.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
15. 15.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
16. 16.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) strong colour contrast (d) big touch targets
17. 17.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
18. 18.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Footer: 12 px
    Body text: 12 px
20. 20.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
21. 21.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
22. 22.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) strong colour contrast (d) sudden loud sounds
23. 23.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) captions on videos
24. 24.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) tiny tap areas (d) icons with no labels
25. 25.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a bright colour (d) a text label
26. 26.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 24 px
    Label: 17 px
    Hint: 11 px (a) Footer (b) Label (c) Hint
28. 28.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
29. 29.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 25 px
    Label: 13 px
    Title: 27 px
    Body text: 27 px (a) Label (b) Title (c) Hint (d) Body text
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Hint: 16 px
    Footer: 10 px
    Menu: 18 px (a) Hint (b) Menu (c) Title (d) Footer
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Body text: 11 px
    Caption: 19 px (a) Caption (b) Body text (c) Menu
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Footer: 20 px
    Body text: 10 px
    Menu: 24 px
    Hint: 12 px
34. 34.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Label: 21 px
    Caption: 11 px (a) Label (b) Menu (c) Caption
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Body text: 10 px
    Footer: 12 px
    Caption: 13 px
37. 37.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) sudden loud sounds (d) labels on every icon
38. 38.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
39. 39.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Title: 9 px
    Label: 16 px (a) Body text (b) Title (c) Label

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