App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 702 · 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.♿ A screen has 12 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
3. 3.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
4. 4.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) icons with no labels (d) tiny tap areas
5. 5.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
7. 7.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
8. 8.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
9. 9.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
10. 10.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
11. 11.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) labels on every icon (d) captions on videos
12. 12.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Body text: 18 px
    Menu: 11 px
    Caption: 11 px
    Hint: 19 px
14. 14.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
15. 15.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
16. 16.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
17. 17.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
18. 18.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
19. 19.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
20. 20.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Footer: 24 px
    Body text: 25 px
    Label: 28 px
    Hint: 12 px (a) Body text (b) Hint (c) Menu (d) Footer
22. 22.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
23. 23.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) captions on videos (d) strong colour contrast
24. 24.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) icons with no labels (d) text that can grow
25. 25.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) big touch targets (d) fast-flashing lights
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 24 px
    Menu: 10 px
    Title: 18 px (a) Body text (b) Title (c) Menu
27. 27.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
28. 28.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) strong colour contrast (d) colour as the only clue
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Caption: 17 px
    Body text: 26 px
    Hint: 17 px
    Title: 11 px (a) Caption (b) Footer (c) Body text (d) Title
30. 30.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) captions on videos (d) sudden loud sounds
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 24 px
    Title: 26 px
    Hint: 9 px (a) Hint (b) Menu (c) Title
32. 32.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
33. 33.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) labels on every icon (d) text that can grow
34. 34.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
35. 35.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) icons with no labels (d) captions on videos
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Hint: 27 px
    Menu: 10 px
    Caption: 22 px
    Title: 19 px (a) Footer (b) Menu (c) Caption (d) Hint
37. 37.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
38. 38.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
39. 39.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
40. 40.Which of these makes the app harder to use? (a) colour as the only clue (b) text that can grow (c) strong colour contrast (d) labels on every icon

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