App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 206 · 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. Which text on this screen is too small?
   Caption: 27 px
   Menu: 19 px
   Title: 24 px
   Label: 27 px
   Footer: 12 px (a) Footer (b) Caption (c) Menu (d) Title
2. 2.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 17 px
   Footer: 28 px
   Body text: 14 px (a) Label (b) Body text (c) Footer
4. 4.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
5. 5.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
6. 6.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
7. 7.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
8. 8.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) big touch targets (d) fast-flashing lights
9. 9.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
11. 11.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
12. 12.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) text that can grow (d) colour as the only clue
14. 14.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
15. 15.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
16. 16.Which of these makes the app harder to use? (a) colour as the only clue (b) captions on videos (c) labels on every icon (d) strong colour contrast
17. 17.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Footer: 28 px
    Label: 26 px
    Title: 25 px
    Caption: 9 px (a) Caption (b) Footer (c) Body text (d) Label
19. 19.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
20. 20.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) labels on every icon (d) tiny tap areas
21. 21.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
22. 22.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) big touch targets (d) sudden loud sounds
23. 23.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
24. 24.Which of these helps everyone use the app? (a) colour as the only clue (b) captions on videos (c) fast-flashing lights (d) tiny tap areas
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 13 px
    Hint: 23 px
    Title: 19 px (a) Hint (b) Caption (c) Title
26. 26.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
27. 27.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) text that can grow (d) tiny tap areas
28. 28.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 20 px
    Caption: 18 px
    Label: 22 px
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Hint: 22 px
    Footer: 16 px (a) Footer (b) Hint (c) Label
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Body text: 21 px
    Caption: 17 px
32. 32.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Label: 15 px
    Title: 19 px
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Body text: 22 px
    Menu: 23 px
    Caption: 24 px
    Label: 22 px (a) Menu (b) Hint (c) Body text (d) Caption
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Hint: 22 px
    Caption: 19 px
    Footer: 18 px
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Title: 24 px
    Hint: 23 px
    Caption: 15 px
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Caption: 24 px
    Title: 19 px
38. 38.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) labels on every icon (d) fast-flashing lights
39. 39.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
40. 40.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone

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