App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 819 · 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?
   Menu: 19 px
   Body text: 12 px
   Hint: 15 px
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
3. 3.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) strong colour contrast (d) fast-flashing lights
4. 4.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
5. 5.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) big touch targets (d) icons with no labels
7. 7.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
8. 8.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) sudden loud sounds (d) colour as the only clue
9. 9.♿ 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
10. 10.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
11. 11.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
12. 12.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
13. 13.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
14. 14.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) icons with no labels (d) big touch targets
16. 16.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) labels on every icon (d) sudden loud sounds
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Title: 20 px
    Hint: 24 px
    Body text: 24 px
    Label: 19 px (a) Hint (b) Menu (c) Body text (d) Title
18. 18.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Title: 20 px
    Menu: 18 px
    Label: 26 px
    Body text: 19 px (a) Label (b) Title (c) Hint (d) Menu
20. 20.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
22. 22.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
24. 24.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) tiny tap areas
25. 25.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) labels on every icon (d) colour as the only clue
26. 26.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) sudden loud sounds (d) captions on videos
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Body text: 11 px
    Footer: 24 px
28. 28.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) fast-flashing lights (d) tiny tap areas
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Hint: 11 px
    Menu: 23 px
    Label: 17 px (a) Footer (b) Hint (c) Label (d) Menu
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Title: 16 px
    Label: 16 px
31. 31.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Caption: 28 px
    Footer: 26 px
    Title: 23 px
    Menu: 22 px (a) Footer (b) Title (c) Caption (d) Body text
33. 33.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) strong colour contrast (d) big touch targets
34. 34.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
35. 35.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
36. 36.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Hint: 15 px
    Body text: 22 px
38. 38.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
39. 39.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Hint: 11 px
    Caption: 16 px
    Body text: 28 px
    Footer: 27 px (a) Body text (b) Label (c) Hint (d) Caption

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