App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 247 · 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?
   Body text: 10 px
   Hint: 18 px
   Menu: 22 px
   Title: 16 px
2. 2.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
3. 3.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) text that can grow
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 12 px
   Title: 16 px
   Footer: 17 px
   Caption: 26 px (a) Footer (b) Menu (c) Caption (d) Title
5. 5.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) text that can grow (d) icons with no labels
6. 6.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 23 px
   Menu: 16 px
   Hint: 10 px
8. 8.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
9. 9.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
10. 10.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
11. 11.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Label: 12 px
    Hint: 20 px
    Body text: 12 px
13. 13.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Label: 27 px
    Body text: 28 px
    Title: 17 px
    Footer: 14 px (a) Body text (b) Caption (c) Footer (d) Label
15. 15.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
16. 16.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Menu: 14 px
    Hint: 17 px
    Body text: 12 px
18. 18.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) strong colour contrast
19. 19.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
20. 20.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) icons with no labels
21. 21.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
22. 22.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) text that can grow (d) tiny tap areas
23. 23.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) text that can grow (d) captions on videos
24. 24.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) sudden loud sounds (d) labels on every icon
25. 25.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Footer: 10 px
    Label: 22 px
    Body text: 20 px (a) Body text (b) Footer (c) Label (d) Title
27. 27.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
29. 29.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
30. 30.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Caption: 9 px
    Label: 22 px (a) Title (b) Caption (c) Label
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Footer: 17 px
    Body text: 13 px
    Caption: 16 px
    Menu: 23 px
33. 33.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
34. 34.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Menu: 23 px
    Label: 21 px
    Body text: 12 px
    Title: 12 px
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Footer: 21 px
    Caption: 11 px (a) Footer (b) Label (c) Caption
37. 37.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) labels on every icon (d) icons with no labels
38. 38.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Label: 15 px
    Body text: 21 px
    Footer: 24 px
40. 40.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?

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