App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 713 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 20 px
   Hint: 11 px
   Caption: 10 px
   Body text: 13 px
   Title: 17 px
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 24 px
   Footer: 23 px
   Label: 15 px
3. 3.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
4. 4.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
5. 5.Which of these makes the app harder to use? (a) labels on every icon (b) fast-flashing lights (c) captions on videos (d) strong colour contrast
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 26 px
   Hint: 9 px
   Title: 24 px (a) Hint (b) Caption (c) Title
7. 7.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) big touch targets
8. 8.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 22 px
   Menu: 13 px
   Label: 21 px
10. 10.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
11. 11.Which of these makes the app harder to use? (a) captions on videos (b) colour as the only clue (c) strong colour contrast (d) text that can grow
12. 12.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Menu: 9 px
    Footer: 23 px (a) Menu (b) Label (c) Footer
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Title: 21 px
    Hint: 13 px (a) Title (b) Hint (c) Menu
15. 15.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Body text: 11 px
    Caption: 15 px
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Title: 18 px
    Hint: 17 px
18. 18.Which of these helps everyone use the app? (a) text that can grow (b) icons with no labels (c) fast-flashing lights (d) sudden loud sounds
19. 19.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
20. 20.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
21. 21.🔍 Which is the odd one out? (a) fast-flashing lights (b) captions on videos (c) sudden loud sounds (d) icons with no labels
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Label: 16 px
    Hint: 27 px
    Menu: 14 px (a) Label (b) Title (c) Menu (d) Hint
23. 23.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) labels on every icon (d) tiny tap areas
24. 24.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) big touch targets (d) text that can grow
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Title: 24 px
    Label: 24 px
    Body text: 12 px (a) Label (b) Body text (c) Menu (d) Title
26. 26.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
27. 27.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
28. 28.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
29. 29.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
31. 31.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
32. 32.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
33. 33.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
34. 34.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
35. 35.♿ A screen has 11 icon buttons. Only 10 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. How many texts on this screen are too small?
    Caption: 20 px
    Hint: 20 px
    Body text: 10 px
    Label: 22 px
37. 37.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) tiny tap areas (d) strong colour contrast
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Footer: 24 px
    Body text: 20 px (a) Label (b) Footer (c) Body text
39. 39.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) sudden loud sounds (d) text that can grow
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Caption: 10 px
    Hint: 28 px (a) Body text (b) Caption (c) Hint

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