App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 140 · 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.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
2. 2.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) labels on every icon (d) colour as the only clue
4. 4.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
6. 6.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 11 px
   Footer: 21 px
   Title: 19 px
   Label: 26 px
   Body text: 21 px (a) Title (b) Label (c) Hint (d) Footer
8. 8.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
9. 9.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a bright colour (d) a sound
10. 10.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
11. 11.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
12. 12.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
14. 14.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
15. 15.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Body text: 20 px
    Footer: 14 px
    Title: 12 px
    Hint: 17 px
17. 17.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 22 px
    Menu: 13 px
    Body text: 17 px
    Hint: 16 px
    Label: 22 px
19. 19.Which of these makes the app harder to use? (a) captions on videos (b) colour as the only clue (c) text that can grow (d) labels on every icon
20. 20.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Footer: 14 px
    Body text: 24 px
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Title: 19 px
    Body text: 20 px
    Footer: 24 px
23. 23.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) tiny tap areas (d) icons with no labels
24. 24.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
25. 25.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 26 px
    Title: 9 px
    Menu: 18 px (a) Menu (b) Title (c) Body text
28. 28.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
29. 29.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) icons with no labels (d) colour as the only clue
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Footer: 17 px
    Title: 21 px
    Body text: 25 px
    Menu: 27 px (a) Label (b) Footer (c) Title (d) Body text
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Hint: 13 px
    Caption: 21 px
    Footer: 18 px (a) Footer (b) Title (c) Hint (d) Caption
33. 33.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) colour as the only clue (d) fast-flashing lights
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 13 px
    Title: 22 px
    Hint: 18 px
    Body text: 22 px (a) Menu (b) Body text (c) Hint (d) Title
36. 36.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) labels on every icon (d) fast-flashing lights
37. 37.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
38. 38.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
39. 39.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) fast-flashing lights

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