App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 289 · 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 makes the app harder to use? (a) big touch targets (b) labels on every icon (c) text that can grow (d) colour as the only clue
2. 2.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) labels on every icon (d) icons with no labels
3. 3.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
4. 4.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
5. 5.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
6. 6.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) big touch targets
7. 7.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
8. 8.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
9. 9.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) fast-flashing lights (d) colour as the only clue
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Label: 24 px
    Title: 15 px
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Label: 14 px
    Hint: 23 px
    Body text: 14 px
13. 13.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
14. 14.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
15. 15.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
16. 16.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) text that can grow (d) icons with no labels
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Menu: 23 px
    Title: 17 px
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 18 px
    Menu: 22 px
    Label: 14 px
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Hint: 27 px
    Body text: 24 px (a) Body text (b) Hint (c) Title
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Body text: 28 px
    Hint: 28 px (a) Title (b) Hint (c) Body text
22. 22.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) colour as the only clue (d) labels on every icon
23. 23.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
24. 24.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon
25. 25.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
26. 26.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) strong colour contrast
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 16 px
    Caption: 24 px
    Body text: 19 px
    Footer: 21 px
28. 28.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Footer: 19 px
    Caption: 13 px
    Title: 22 px (a) Body text (b) Footer (c) Title (d) Caption
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 14 px
    Hint: 14 px
    Body text: 14 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Label: 22 px
    Hint: 19 px
    Menu: 9 px (a) Footer (b) Hint (c) Menu (d) Label
32. 32.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
33. 33.Which of these makes the app harder to use? (a) icons with no labels (b) labels on every icon (c) big touch targets (d) text that can grow
34. 34.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
35. 35.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
36. 36.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Footer: 28 px
    Body text: 11 px (a) Body text (b) Label (c) Footer
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 22 px
    Body text: 19 px
    Hint: 24 px
    Title: 10 px (a) Title (b) Label (c) Body text (d) Hint
39. 39.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) tiny tap areas
40. 40.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False

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