App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 167 · 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.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
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.♿ 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.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) labels on every icon (d) strong colour contrast
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 18 px
   Footer: 20 px
   Hint: 16 px
   Label: 17 px
6. 6.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 23 px
   Body text: 23 px
   Hint: 11 px
   Label: 28 px
   Title: 20 px (a) Body text (b) Menu (c) Hint (d) Label
8. 8.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 14 px
   Caption: 22 px
   Footer: 10 px
10. 10.Which of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) icons with no labels (d) colour as the only clue
11. 11.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
12. 12.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Menu: 21 px
    Label: 15 px
    Caption: 23 px
    Title: 10 px
15. 15.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) text that can grow
16. 16.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
17. 17.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
18. 18.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) tiny tap areas (d) text that can grow
19. 19.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) strong colour contrast (d) captions on videos
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Caption: 11 px
    Label: 14 px
    Title: 14 px
21. 21.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
22. 22.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
23. 23.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) fast-flashing lights (d) sudden loud sounds
25. 25.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
26. 26.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
27. 27.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
28. 28.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) text that can grow
29. 29.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
30. 30.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Caption: 18 px
    Label: 26 px
    Footer: 12 px (a) Body text (b) Footer (c) Caption (d) Label
32. 32.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
33. 33.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
34. 34.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
35. 35.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) captions on videos (d) fast-flashing lights
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Caption: 13 px
    Body text: 17 px
    Hint: 24 px
    Title: 19 px (a) Hint (b) Menu (c) Caption (d) Body text
37. 37.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Hint: 15 px
    Caption: 19 px
    Footer: 18 px
    Title: 22 px
39. 39.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) labels on every icon (d) big touch targets
40. 40.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder

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