App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 516 · 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?
   Label: 12 px
   Menu: 13 px
   Hint: 21 px
2. 2.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
3. 3.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) icons with no labels (d) captions on videos
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 16 px
   Hint: 10 px
   Caption: 28 px (a) Hint (b) Caption (c) Footer
5. 5.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
6. 6.♿ What does a screen reader do? (a) takes photos (b) plays music (c) reads the screen aloud (d) makes text tiny
7. 7.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 10 px
   Menu: 18 px
   Title: 11 px
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 23 px
   Hint: 17 px
   Title: 17 px
   Footer: 24 px
   Label: 20 px
10. 10.Which of these helps everyone use the app? (a) fast-flashing lights (b) captions on videos (c) icons with no labels (d) colour as the only clue
11. 11.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) labels on every icon (d) colour as the only clue
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 13 px
    Title: 25 px
    Footer: 23 px
    Hint: 19 px
    Caption: 25 px (a) Footer (b) Title (c) Menu (d) Hint
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) big touch targets (d) captions on videos
14. 14.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Hint: 17 px
    Caption: 25 px (a) Caption (b) Hint (c) Title
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
17. 17.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
18. 18.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
19. 19.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
20. 20.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 12 px
    Label: 18 px
    Caption: 19 px
    Footer: 25 px
    Title: 18 px (a) Footer (b) Label (c) Caption (d) Hint
22. 22.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
23. 23.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
24. 24.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
25. 25.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) fast-flashing lights (d) sudden loud sounds
26. 26.🔍 Which is the odd one out? (a) sudden loud sounds (b) big touch targets (c) strong colour contrast (d) labels on every icon
27. 27.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) big touch targets (d) sudden loud sounds
28. 28.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) text that can grow (d) icons with no labels
29. 29.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Footer: 13 px
    Body text: 12 px
31. 31.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
32. 32.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
33. 33.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
35. 35.🔍 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
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Label: 22 px
    Footer: 17 px (a) Label (b) Footer (c) Hint
37. 37.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
38. 38.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
39. 39.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Footer: 9 px
    Hint: 26 px (a) Footer (b) Menu (c) Hint

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