App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 695 · 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.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 17 px
   Hint: 11 px
   Caption: 14 px
   Menu: 20 px
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 25 px
   Footer: 27 px
   Caption: 19 px
   Label: 13 px
   Menu: 22 px (a) Caption (b) Footer (c) Label (d) Title
4. 4.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 17 px
   Title: 12 px
   Label: 16 px
   Footer: 24 px
   Caption: 17 px
6. 6.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a long animation (d) a sound
7. 7.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
8. 8.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (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
   Title: 24 px
   Caption: 23 px
   Footer: 12 px
10. 10.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) colour as the only clue (d) big touch targets
11. 11.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
12. 12.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) fast-flashing lights (d) icons with no labels
13. 13.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) captions on videos (d) text that can grow
14. 14.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
15. 15.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
16. 16.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) sudden loud sounds (d) text that can grow
17. 17.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) labels on every icon (d) sudden loud sounds
18. 18.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) labels on every icon (d) captions on videos
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Caption: 21 px
    Footer: 25 px
    Hint: 16 px
    Body text: 9 px (a) Label (b) Body text (c) Caption (d) Footer
20. 20.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
21. 21.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
22. 22.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Body text: 12 px
    Hint: 13 px
    Caption: 11 px
    Footer: 14 px
24. 24.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Caption: 23 px
    Label: 17 px
    Hint: 19 px
    Footer: 10 px (a) Caption (b) Label (c) Menu (d) Footer
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
27. 27.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) icons with no labels (d) colour as the only clue
28. 28.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) icons with no labels (d) text that can grow
29. 29.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
30. 30.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Caption: 25 px
    Menu: 11 px (a) Body text (b) Menu (c) Caption
33. 33.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Menu: 20 px
    Label: 21 px
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Body text: 16 px
    Footer: 24 px
    Label: 27 px
    Title: 18 px (a) Body text (b) Caption (c) Label (d) Footer
36. 36.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
37. 37.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
38. 38.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
39. 39.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
40. 40.True or false: “text that can grow” makes the app harder to use. (a) True (b) False

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