App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 628 · 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.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) icons with no labels (d) fast-flashing lights
2. 2.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
3. 3.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
5. 5.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) strong colour contrast
6. 6.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 26 px
   Caption: 12 px
   Title: 16 px
   Menu: 20 px
   Footer: 23 px (a) Menu (b) Title (c) Caption (d) Body text
8. 8.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 10 px
   Hint: 19 px
   Body text: 23 px
10. 10.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
12. 12.♿ 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
13. 13.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
14. 14.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) strong colour contrast (d) fast-flashing lights
15. 15.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) labels on every icon (d) sudden loud sounds
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Body text: 18 px
    Caption: 14 px
    Hint: 16 px
    Menu: 19 px
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Body text: 17 px
    Title: 13 px
    Label: 18 px (a) Label (b) Body text (c) Menu (d) Title
18. 18.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) text that can grow (d) icons with no labels
19. 19.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Footer: 17 px
    Label: 13 px
    Body text: 13 px
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Hint: 28 px
    Caption: 22 px (a) Hint (b) Footer (c) Caption
22. 22.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
23. 23.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
24. 24.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) labels on every icon (d) sudden loud sounds
25. 25.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) tiny tap areas (d) text that can grow
26. 26.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
27. 27.Which of these makes the app harder to use? (a) icons with no labels (b) labels on every icon (c) text that can grow (d) captions on videos
28. 28.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
29. 29.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) fast-flashing lights (d) text that can grow
30. 30.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) colour as the only clue
31. 31.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
32. 32.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
33. 33.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Body text: 12 px
    Footer: 23 px
    Hint: 16 px
    Label: 24 px
35. 35.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Menu: 16 px
    Title: 24 px
    Hint: 10 px
    Caption: 18 px (a) Menu (b) Footer (c) Hint (d) Title
37. 37.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) fast-flashing lights (d) labels on every icon
38. 38.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
39. 39.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
40. 40.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False

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