App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 314 · 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.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) icons with no labels (d) sudden loud sounds
3. 3.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) tiny tap areas (d) big touch targets
4. 4.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) captions on videos (d) labels on every icon
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 14 px
   Hint: 20 px
   Body text: 19 px (a) Menu (b) Body text (c) Hint
6. 6.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
7. 7.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
8. 8.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
9. 9.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
10. 10.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) colour as the only clue (d) labels on every icon
12. 12.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) tiny tap areas (d) big touch targets
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Title: 14 px
    Caption: 11 px
    Menu: 15 px
    Hint: 11 px
14. 14.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) text that can grow (d) icons with no labels
16. 16.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
17. 17.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
18. 18.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) sudden loud sounds (d) strong colour contrast
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Label: 13 px
    Footer: 23 px
20. 20.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Menu: 24 px
    Hint: 15 px
    Caption: 13 px
22. 22.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
23. 23.♿ 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
24. 24.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
25. 25.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) text that can grow (d) captions on videos
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Caption: 18 px
    Body text: 17 px
    Footer: 11 px
    Hint: 14 px
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Footer: 10 px
    Caption: 18 px
    Title: 12 px
28. 28.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
29. 29.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
30. 30.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (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?
    Menu: 20 px
    Caption: 9 px
    Hint: 28 px (a) Menu (b) Caption (c) Hint
32. 32.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
33. 33.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
34. 34.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) colour as the only clue (d) captions on videos
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Title: 22 px
    Menu: 23 px
36. 36.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) captions on videos (d) strong colour contrast
37. 37.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Caption: 11 px
    Hint: 28 px (a) Menu (b) Caption (c) Hint
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Hint: 10 px
    Label: 21 px
    Body text: 21 px
40. 40.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?

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