App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 767 · 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: big touch targets? (a) makes it harder (b) helps everyone
2. 2.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
3. 3.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
4. 4.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
5. 5.🔍 Which is the odd one out? (a) tiny tap areas (b) strong colour contrast (c) icons with no labels (d) sudden loud sounds
6. 6.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) text that can grow (d) strong colour contrast
7. 7.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) text that can grow (d) tiny tap areas
8. 8.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
10. 10.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) text that can grow (d) fast-flashing lights
11. 11.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) labels on every icon (d) sudden loud sounds
12. 12.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) big touch targets (d) strong colour contrast
13. 13.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
14. 14.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Hint: 10 px
    Footer: 18 px (a) Footer (b) Title (c) Hint
16. 16.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
17. 17.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
18. 18.Which of these helps everyone use the app? (a) text that can grow (b) sudden loud sounds (c) fast-flashing lights (d) icons with no labels
19. 19.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) big touch targets (d) text that can grow
20. 20.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) big touch targets
21. 21.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
23. 23.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
24. 24.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
25. 25.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) icons with no labels (d) colour as the only clue
26. 26.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
27. 27.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) big touch targets (d) text that can grow
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Title: 25 px
    Footer: 11 px (a) Footer (b) Caption (c) Title
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Footer: 22 px
    Label: 15 px
    Hint: 22 px
30. 30.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a long animation (d) a sound
31. 31.Which of these makes the app harder to use? (a) labels on every icon (b) colour as the only clue (c) text that can grow (d) strong colour contrast
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Menu: 11 px
    Footer: 16 px
    Caption: 23 px (a) Footer (b) Caption (c) Menu (d) Label
33. 33.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Hint: 24 px
    Caption: 14 px
    Menu: 12 px
35. 35.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
36. 36.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
37. 37.Which of these helps everyone use the app? (a) captions on videos (b) tiny tap areas (c) sudden loud sounds (d) fast-flashing lights
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Title: 19 px
    Caption: 11 px
    Menu: 16 px
39. 39.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
40. 40.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True

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