App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 195 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 24 px
   Body text: 17 px
   Label: 20 px
   Title: 21 px
2. 2.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
3. 3.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
4. 4.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
5. 5.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
6. 6.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) captions on videos (d) tiny tap areas
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 14 px
   Hint: 25 px
   Title: 20 px
   Body text: 18 px
   Caption: 26 px (a) Hint (b) Menu (c) Title (d) Body text
8. 8.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) sudden loud sounds (d) strong colour contrast
9. 9.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) text that can grow (d) icons with no labels
10. 10.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) captions on videos (d) icons with no labels
12. 12.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
13. 13.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
14. 14.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
16. 16.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
17. 17.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Caption: 10 px
    Hint: 11 px
19. 19.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Menu: 14 px
    Title: 10 px
    Hint: 13 px
    Label: 21 px
21. 21.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) big touch targets
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Caption: 10 px
    Menu: 26 px (a) Hint (b) Menu (c) Caption
23. 23.♿ A screen has 9 icon buttons. Only 6 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. How many texts on this screen are too small?
    Hint: 15 px
    Caption: 12 px
    Body text: 13 px
    Footer: 18 px
    Menu: 22 px
25. 25.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) strong colour contrast (d) sudden loud sounds
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Hint: 15 px
    Body text: 20 px
27. 27.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to add colour (d) to slow them down
28. 28.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
29. 29.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
30. 30.♿ 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
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 23 px
    Label: 24 px
    Body text: 16 px
    Footer: 13 px
    Caption: 20 px
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Title: 17 px
    Menu: 20 px
33. 33.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) captions on videos (d) colour as the only clue
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Menu: 9 px
    Hint: 18 px (a) Menu (b) Hint (c) Footer
35. 35.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) text that can grow (d) fast-flashing lights
36. 36.Which of these makes the app harder to use? (a) captions on videos (b) icons with no labels (c) labels on every icon (d) text that can grow
37. 37.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Title: 24 px
    Menu: 22 px (a) Menu (b) Label (c) Title
39. 39.Which of these helps everyone use the app? (a) tiny tap areas (b) text that can grow (c) fast-flashing lights (d) icons with no labels
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Title: 14 px
    Menu: 20 px

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