App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 737 · 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) captions on videos (b) tiny tap areas (c) strong colour contrast (d) text that can grow
2. 2.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
3. 3.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) captions on videos
4. 4.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
5. 5.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) icons with no labels (d) sudden loud sounds
6. 6.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
7. 7.Which of these makes the app harder to use? (a) icons with no labels (b) text that can grow (c) captions on videos (d) labels on every icon
8. 8.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 14 px
   Label: 16 px
   Body text: 14 px
   Hint: 23 px
10. 10.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
11. 11.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
12. 12.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
13. 13.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Label: 13 px
    Menu: 21 px
15. 15.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) tiny tap areas (d) big touch targets
16. 16.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
17. 17.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) text that can grow (d) labels on every icon
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Label: 20 px
    Caption: 18 px
    Footer: 12 px (a) Menu (b) Label (c) Caption (d) Footer
19. 19.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
20. 20.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
22. 22.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) labels on every icon (d) strong colour contrast
23. 23.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Body text: 25 px
    Menu: 9 px
    Label: 19 px
    Title: 18 px (a) Body text (b) Label (c) Footer (d) Menu
25. 25.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
26. 26.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
28. 28.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Label: 12 px
    Footer: 12 px
    Caption: 14 px
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 13 px
    Label: 28 px
    Body text: 22 px (a) Label (b) Caption (c) Body text
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Hint: 11 px
    Label: 28 px (a) Label (b) Hint (c) Body text
32. 32.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 24 px
    Caption: 9 px
    Label: 22 px
    Menu: 25 px (a) Hint (b) Caption (c) Menu (d) Label
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Body text: 20 px
    Menu: 28 px
    Hint: 12 px (a) Menu (b) Hint (c) Footer (d) Body text
35. 35.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Body text: 13 px
    Menu: 14 px
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Footer: 13 px
    Menu: 21 px
    Caption: 10 px
38. 38.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) tiny tap areas (d) sudden loud sounds
39. 39.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) colour as the only clue (d) icons with no labels
40. 40.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users

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