App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 273 · 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) fast-flashing lights (b) icons with no labels (c) labels on every icon (d) sudden loud sounds
2. 2.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
3. 3.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) text that can grow
4. 4.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
5. 5.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
6. 6.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
7. 7.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
8. 8.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
9. 9.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) colour as the only clue (d) strong colour contrast
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Label: 16 px
    Hint: 22 px
    Footer: 28 px
    Caption: 14 px (a) Body text (b) Label (c) Caption (d) Hint
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Body text: 24 px
    Menu: 11 px
    Title: 13 px
12. 12.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
13. 13.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
14. 14.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) strong colour contrast (d) text that can grow
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Caption: 11 px
    Menu: 12 px
    Footer: 11 px
16. 16.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Menu: 14 px
    Body text: 24 px
    Label: 14 px
    Title: 23 px
18. 18.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 13 px
    Footer: 24 px
    Hint: 24 px (a) Footer (b) Hint (c) Menu
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 24 px
    Caption: 26 px
    Hint: 11 px
    Body text: 24 px
    Footer: 28 px (a) Caption (b) Body text (c) Hint (d) Menu
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Body text: 24 px
    Title: 23 px
    Footer: 18 px (a) Title (b) Body text (c) Footer (d) Label
22. 22.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
23. 23.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
24. 24.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
25. 25.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Body text: 21 px
    Hint: 25 px
    Title: 20 px (a) Title (b) Hint (c) Menu (d) Body text
27. 27.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
28. 28.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) text that can grow (d) fast-flashing lights
30. 30.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) strong colour contrast (d) labels on every icon
31. 31.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) sudden loud sounds (d) icons with no labels
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Label: 22 px
    Footer: 16 px (a) Footer (b) Label (c) Title
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Hint: 22 px
    Caption: 23 px (a) Label (b) Hint (c) Caption
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Hint: 11 px
    Label: 14 px
    Caption: 15 px
    Menu: 12 px
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 28 px
    Caption: 14 px
    Title: 18 px
    Label: 19 px (a) Menu (b) Label (c) Caption (d) Title
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Body text: 28 px
    Title: 26 px
    Menu: 9 px (a) Label (b) Body text (c) Menu (d) Title
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Caption: 23 px
    Title: 24 px (a) Caption (b) Title (c) Footer
38. 38.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
39. 39.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) captions on videos (d) icons with no labels
40. 40.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?

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