App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 293 · 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.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
2. 2.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
3. 3.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
4. 4.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) captions on videos (d) fast-flashing lights
5. 5.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
6. 6.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
7. 7.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) plays music (d) takes photos
8. 8.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
9. 9.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
10. 10.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Footer: 11 px
    Title: 19 px
    Label: 19 px
    Hint: 19 px
12. 12.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a text label (d) a bright colour
13. 13.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 23 px
    Footer: 9 px
    Body text: 27 px
    Label: 18 px
    Menu: 21 px (a) Label (b) Caption (c) Footer (d) Body text
15. 15.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) labels on every icon
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Label: 14 px
    Title: 24 px (a) Footer (b) Label (c) Title
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Body text: 9 px
    Hint: 16 px
    Menu: 24 px (a) Body text (b) Hint (c) Caption (d) Menu
18. 18.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
19. 19.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) big touch targets (d) icons with no labels
20. 20.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
21. 21.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) captions on videos (d) icons with no labels
22. 22.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Title: 20 px
    Label: 17 px
    Body text: 12 px
24. 24.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Hint: 13 px
    Menu: 14 px
    Footer: 17 px
26. 26.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
27. 27.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
28. 28.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
29. 29.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Footer: 23 px
    Body text: 15 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Hint: 23 px
    Body text: 11 px
    Footer: 18 px
    Title: 22 px (a) Caption (b) Footer (c) Hint (d) Body text
32. 32.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
33. 33.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) big touch targets (d) icons with no labels
34. 34.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
35. 35.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Hint: 9 px
    Label: 23 px (a) Hint (b) Label (c) Caption
37. 37.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
38. 38.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) icons with no labels
40. 40.True or false: “captions on videos” helps everyone use the app. (a) False (b) True

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