App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 138 · 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: fast-flashing lights? (a) makes it harder (b) helps everyone
2. 2.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
3. 3.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
4. 4.Which of these makes the app harder to use? (a) text that can grow (b) tiny tap areas (c) big touch targets (d) labels on every icon
5. 5.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) captions on videos
6. 6.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 12 px
   Menu: 21 px
   Body text: 20 px
   Footer: 24 px (a) Body text (b) Footer (c) Menu (d) Label
8. 8.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
9. 9.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) labels on every icon (d) sudden loud sounds
10. 10.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) fast-flashing lights (d) big touch targets
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Label: 21 px
    Title: 17 px
12. 12.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
13. 13.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
14. 14.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Caption: 10 px
    Footer: 13 px
    Menu: 24 px
16. 16.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Menu: 10 px
    Hint: 19 px
    Title: 27 px
    Footer: 25 px (a) Title (b) Hint (c) Body text (d) Menu
18. 18.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
19. 19.Which of these makes the app harder to use? (a) colour as the only clue (b) strong colour contrast (c) labels on every icon (d) big touch targets
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Menu: 23 px
    Title: 24 px
    Caption: 23 px
    Label: 16 px (a) Title (b) Body text (c) Caption (d) Menu
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Label: 22 px
    Body text: 24 px
    Menu: 17 px (a) Footer (b) Label (c) Menu (d) Body text
22. 22.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 21 px
    Label: 20 px
    Title: 14 px
    Menu: 16 px
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Footer: 19 px
    Label: 13 px (a) Footer (b) Label (c) Menu
26. 26.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
27. 27.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
28. 28.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) labels on every icon (d) icons with no labels
29. 29.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) captions on videos (d) colour as the only clue
30. 30.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Title: 16 px
    Caption: 12 px
    Body text: 17 px
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Caption: 14 px
    Hint: 24 px (a) Title (b) Caption (c) Hint
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Menu: 17 px
    Body text: 16 px
    Footer: 18 px
    Title: 14 px
34. 34.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) text that can grow (d) fast-flashing lights
35. 35.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
36. 36.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
37. 37.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Title: 21 px
    Footer: 19 px (a) Title (b) Footer (c) Body text
39. 39.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.♿ 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

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