App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 715 · 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.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
2. 2.Which of these makes the app harder to use? (a) colour as the only clue (b) big touch targets (c) labels on every icon (d) text that can grow
3. 3.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) tiny tap areas
4. 4.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
5. 5.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) colour as the only clue (d) captions on videos
7. 7.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
8. 8.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 15 px
   Body text: 11 px
   Title: 21 px
   Hint: 17 px
   Menu: 21 px
10. 10.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
11. 11.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
13. 13.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) strong colour contrast (d) text that can grow
14. 14.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Body text: 10 px
    Label: 16 px
    Title: 21 px
    Hint: 12 px
16. 16.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
17. 17.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) big touch targets (d) captions on videos
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Hint: 13 px
    Label: 12 px
    Caption: 10 px
20. 20.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Label: 21 px
    Caption: 21 px (a) Label (b) Caption (c) Menu
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Body text: 19 px
    Menu: 19 px
    Caption: 24 px (a) Menu (b) Footer (c) Caption (d) Body text
23. 23.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) only experts (d) nobody
24. 24.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) icons with no labels (d) colour as the only clue
25. 25.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 23 px
    Footer: 21 px
    Menu: 20 px
    Hint: 24 px
27. 27.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Title: 24 px
    Hint: 27 px
    Body text: 12 px
    Menu: 22 px (a) Caption (b) Hint (c) Title (d) Body text
29. 29.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
30. 30.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
31. 31.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
32. 32.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) text that can grow
33. 33.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) sudden loud sounds (d) captions on videos
34. 34.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
35. 35.♿ A screen has 5 icon buttons. Only 2 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: 11 px
    Hint: 19 px
    Menu: 23 px
    Body text: 18 px
37. 37.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
39. 39.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) fast typists (d) the battery
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Label: 14 px
    Footer: 27 px
    Body text: 24 px
    Title: 22 px (a) Body text (b) Label (c) Hint (d) Footer

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