App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 349 · 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?
   Hint: 24 px
   Menu: 21 px
   Caption: 17 px
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 19 px
   Label: 18 px
   Caption: 9 px
   Hint: 21 px (a) Caption (b) Label (c) Title (d) Hint
3. 3.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) labels on every icon (d) captions on videos
4. 4.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to add colour (d) to hide the sound
5. 5.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
6. 6.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
7. 7.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
8. 8.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
9. 9.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) big touch targets (d) tiny tap areas
10. 10.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) text that can grow (d) big touch targets
11. 11.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
12. 12.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) the battery (d) colour-blind users
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Title: 16 px
    Label: 24 px
    Caption: 10 px
15. 15.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) icons with no labels (d) labels on every icon
16. 16.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 18 px
    Hint: 24 px
    Label: 24 px
    Title: 18 px
18. 18.Which of these helps everyone use the app? (a) labels on every icon (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Title: 14 px
    Label: 25 px
    Body text: 21 px (a) Footer (b) Body text (c) Title (d) Label
20. 20.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
21. 21.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
22. 22.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
23. 23.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Body text: 21 px
    Footer: 10 px
    Hint: 13 px
    Label: 17 px
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) fast-flashing lights (d) icons with no labels
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Caption: 24 px
    Label: 16 px
28. 28.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) strong colour contrast
29. 29.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
31. 31.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 23 px
    Label: 21 px
    Footer: 9 px (a) Footer (b) Menu (c) Label
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Title: 26 px
    Caption: 9 px
    Menu: 24 px (a) Menu (b) Title (c) Footer (d) Caption
34. 34.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) big touch targets (d) icons with no labels
35. 35.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) captions on videos (d) text that can grow
36. 36.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
37. 37.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
38. 38.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Title: 20 px
    Footer: 17 px
    Label: 19 px
    Hint: 14 px
40. 40.Which of these helps everyone use the app? (a) text that can grow (b) sudden loud sounds (c) icons with no labels (d) colour as the only clue

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