App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 531 · 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.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) fast-flashing lights (d) tiny tap areas
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 24 px
   Menu: 28 px
   Hint: 23 px
   Title: 10 px (a) Body text (b) Menu (c) Hint (d) Title
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 19 px
   Body text: 16 px
   Caption: 10 px
   Title: 11 px
   Hint: 11 px
4. 4.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) sudden loud sounds (d) labels on every icon
5. 5.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) colour as the only clue
6. 6.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
7. 7.Which of these makes the app harder to use? (a) labels on every icon (b) fast-flashing lights (c) strong colour contrast (d) captions on videos
8. 8.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
9. 9.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
10. 10.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Body text: 19 px
    Footer: 18 px
    Menu: 16 px
    Label: 17 px
12. 12.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) tiny tap areas (d) sudden loud sounds
13. 13.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) labels on every icon
14. 14.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
15. 15.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Title: 20 px
    Body text: 14 px
    Footer: 21 px
    Hint: 23 px
17. 17.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
19. 19.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) big touch targets (d) colour as the only clue
20. 20.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a sound (d) a bright colour
21. 21.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 23 px
    Label: 18 px
    Body text: 22 px
23. 23.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Caption: 12 px
    Body text: 15 px
25. 25.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Hint: 16 px
    Menu: 21 px
    Caption: 11 px
    Footer: 19 px
27. 27.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
28. 28.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
29. 29.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) icons with no labels (d) strong colour contrast
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Title: 28 px
    Footer: 27 px (a) Hint (b) Footer (c) Title
31. 31.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
32. 32.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
33. 33.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) plays music (d) makes text tiny
34. 34.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
35. 35.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
36. 36.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Body text: 11 px
    Footer: 11 px
    Menu: 21 px
38. 38.🔍 Which is the odd one out? (a) sudden loud sounds (b) big touch targets (c) tiny tap areas (d) fast-flashing lights
39. 39.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Title: 9 px
    Caption: 24 px
    Body text: 25 px
    Hint: 22 px (a) Label (b) Body text (c) Title (d) Caption

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