App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 655 · 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?
   Hint: 10 px
   Menu: 18 px
   Footer: 11 px
2. 2.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
3. 3.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
4. 4.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) strong colour contrast (d) fast-flashing lights
5. 5.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) labels on every icon (d) sudden loud sounds
6. 6.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 10 px
   Footer: 19 px
   Body text: 16 px
   Title: 22 px (a) Footer (b) Body text (c) Caption (d) Title
8. 8.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) sudden loud sounds (d) strong colour contrast
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 23 px
    Title: 25 px
    Menu: 22 px
    Hint: 11 px (a) Title (b) Label (c) Menu (d) Hint
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Caption: 16 px
    Title: 10 px
    Body text: 28 px (a) Title (b) Label (c) Caption (d) Body text
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 24 px
    Menu: 12 px
    Label: 28 px (a) Menu (b) Hint (c) Label
13. 13.♿ 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
14. 14.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
15. 15.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Label: 26 px
    Hint: 22 px
    Caption: 28 px (a) Caption (b) Hint (c) Label (d) Title
17. 17.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
18. 18.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Footer: 13 px
    Caption: 26 px (a) Footer (b) Caption (c) Body text
20. 20.♿ Does this help everyone, or make the app harder to use: text that can grow? (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?
    Title: 13 px
    Body text: 20 px
    Caption: 19 px (a) Body text (b) Caption (c) Title
22. 22.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Title: 17 px
    Caption: 10 px
    Hint: 17 px
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Title: 14 px
    Body text: 18 px
    Hint: 20 px
    Label: 25 px (a) Title (b) Menu (c) Body text (d) Hint
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Caption: 14 px
    Hint: 28 px (a) Title (b) Caption (c) Hint
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Footer: 19 px
    Menu: 11 px (a) Menu (b) Title (c) Footer
27. 27.Which of these makes the app harder to use? (a) fast-flashing lights (b) strong colour contrast (c) captions on videos (d) labels on every icon
28. 28.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Menu: 11 px
    Caption: 12 px
    Body text: 17 px
    Footer: 12 px
31. 31.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
32. 32.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) icons with no labels (d) text that can grow
34. 34.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Hint: 19 px
    Footer: 16 px
    Title: 12 px
    Label: 13 px
36. 36.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
37. 37.🔍 Which is the odd one out? (a) colour as the only clue (b) text that can grow (c) sudden loud sounds (d) tiny tap areas
38. 38.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) sudden loud sounds (d) big touch targets
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 13 px
    Body text: 12 px
    Label: 20 px
    Menu: 10 px
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Body text: 10 px
    Hint: 22 px (a) Body text (b) Title (c) Hint

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