App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 170 · 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.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
3. 3.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
4. 4.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) labels on every icon (d) fast-flashing lights
5. 5.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 10 px
   Caption: 19 px
   Title: 19 px (a) Title (b) Caption (c) Footer
7. 7.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) nobody (d) only experts
9. 9.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
10. 10.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) tiny tap areas (d) captions on videos
11. 11.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
12. 12.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
13. 13.Which of these helps everyone use the app? (a) captions on videos (b) tiny tap areas (c) icons with no labels (d) fast-flashing lights
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Body text: 22 px
    Hint: 9 px
    Title: 18 px
    Label: 28 px (a) Caption (b) Body text (c) Title (d) Hint
15. 15.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 22 px
    Title: 23 px
    Hint: 9 px
    Body text: 27 px (a) Title (b) Footer (c) Body text (d) Hint
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 14 px
    Menu: 20 px
    Hint: 20 px
    Label: 23 px
18. 18.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Body text: 20 px
    Label: 17 px
20. 20.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) sudden loud sounds (d) captions on videos
21. 21.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) colour as the only clue (d) tiny tap areas
23. 23.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
24. 24.♿ 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
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Footer: 14 px
    Title: 20 px
    Caption: 18 px
    Hint: 18 px
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Hint: 12 px
    Menu: 19 px
    Label: 23 px
27. 27.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) sudden loud sounds (d) big touch targets
28. 28.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
29. 29.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) text that can grow (d) colour as the only clue
30. 30.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
31. 31.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) icons with no labels (d) text that can grow
32. 32.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
33. 33.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Footer: 20 px
    Body text: 16 px
    Label: 18 px (a) Footer (b) Label (c) Title (d) Body text
35. 35.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) fast-flashing lights (d) colour as the only clue
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Hint: 28 px
    Footer: 18 px
    Label: 18 px
    Caption: 12 px (a) Body text (b) Footer (c) Caption (d) Hint
37. 37.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
38. 38.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) fast-flashing lights (d) labels on every icon
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Hint: 9 px
    Menu: 28 px (a) Caption (b) Hint (c) Menu
40. 40.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) colour as the only clue (d) sudden loud sounds

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