App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 157 · 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) fast typists (b) the server (c) colour-blind users (d) the battery
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 16 px
   Hint: 22 px
   Title: 18 px
   Menu: 19 px
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 26 px
   Label: 12 px
   Footer: 21 px
   Title: 16 px
   Hint: 18 px (a) Label (b) Footer (c) Title (d) Body text
4. 4.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
5. 5.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
6. 6.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) text that can grow (d) fast-flashing lights
7. 7.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 12 px
   Title: 10 px
   Hint: 18 px
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 26 px
   Title: 18 px
   Hint: 12 px (a) Hint (b) Menu (c) Title
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Body text: 10 px
    Label: 12 px
    Caption: 21 px
11. 11.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) icons with no labels (d) labels on every icon
12. 12.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 24 px
    Hint: 9 px
    Title: 25 px
    Menu: 17 px
    Caption: 18 px (a) Label (b) Title (c) Menu (d) Hint
14. 14.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Hint: 24 px
    Menu: 20 px
    Caption: 16 px
16. 16.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) sudden loud sounds (d) text that can grow
17. 17.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Hint: 28 px
    Footer: 13 px
    Title: 27 px
    Menu: 25 px (a) Footer (b) Hint (c) Body text (d) Title
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 17 px
    Menu: 12 px
    Label: 16 px
    Caption: 21 px
    Hint: 13 px
20. 20.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
21. 21.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
22. 22.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
23. 23.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Label: 10 px
    Title: 23 px
25. 25.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) colour as the only clue (d) strong colour contrast
26. 26.Which of these helps everyone use the app? (a) tiny tap areas (b) text that can grow (c) colour as the only clue (d) fast-flashing lights
27. 27.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) strong colour contrast (d) tiny tap areas
28. 28.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
29. 29.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
30. 30.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Title: 9 px
    Caption: 21 px
    Footer: 21 px
    Label: 18 px (a) Caption (b) Title (c) Menu (d) Footer
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Title: 17 px
    Caption: 12 px (a) Caption (b) Hint (c) Title
33. 33.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
34. 34.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Caption: 10 px
    Hint: 24 px
    Title: 15 px
36. 36.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
37. 37.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
38. 38.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) icons with no labels (d) labels on every icon
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Hint: 19 px
    Menu: 13 px
    Body text: 22 px (a) Hint (b) Title (c) Menu (d) Body text
40. 40.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False

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