App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 633 · 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?
   Title: 14 px
   Body text: 13 px
   Hint: 21 px
   Menu: 17 px
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
3. 3.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only the coder (d) only experts
4. 4.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) captions on videos (d) colour as the only clue
5. 5.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 22 px
   Hint: 18 px
   Caption: 21 px
7. 7.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) icons with no labels (d) labels on every icon
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 10 px
   Menu: 10 px
   Footer: 15 px
   Body text: 24 px
9. 9.Which of these helps everyone use the app? (a) sudden loud sounds (b) strong colour contrast (c) colour as the only clue (d) icons with no labels
10. 10.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
11. 11.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
12. 12.Which of these makes the app harder to use? (a) sudden loud sounds (b) captions on videos (c) labels on every icon (d) text that can grow
13. 13.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
14. 14.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) tiny tap areas
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 18 px
    Body text: 19 px
    Title: 23 px
    Label: 11 px
    Footer: 19 px
16. 16.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
17. 17.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) fast-flashing lights
18. 18.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
19. 19.Which of these helps everyone use the app? (a) labels on every icon (b) tiny tap areas (c) colour as the only clue (d) fast-flashing lights
20. 20.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) labels on every icon (d) text that can grow
21. 21.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Caption: 12 px
    Body text: 20 px
    Title: 27 px
    Hint: 20 px (a) Menu (b) Caption (c) Body text (d) Title
24. 24.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
25. 25.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) strong colour contrast (d) tiny tap areas
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) labels on every icon (d) captions on videos
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 15 px
    Body text: 14 px
    Hint: 16 px
28. 28.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) captions on videos (d) colour as the only clue
30. 30.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
31. 31.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
32. 32.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Hint: 17 px
    Label: 20 px
    Title: 16 px
    Menu: 18 px
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 14 px
    Menu: 27 px
    Title: 16 px
    Body text: 24 px (a) Menu (b) Title (c) Body text (d) Caption
36. 36.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
37. 37.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
38. 38.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Body text: 20 px
    Label: 17 px

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