App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 47 · 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: “colour as the only clue” helps everyone use the app. (a) False (b) True
2. 2.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
3. 3.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
4. 4.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) tiny tap areas (d) sudden loud sounds
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 16 px
   Label: 17 px
   Hint: 16 px
   Title: 24 px
6. 6.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
7. 7.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
8. 8.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
9. 9.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) strong colour contrast (d) sudden loud sounds
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Caption: 11 px
    Menu: 15 px
    Label: 17 px
    Hint: 23 px
12. 12.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
13. 13.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
14. 14.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
15. 15.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) big touch targets
16. 16.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
17. 17.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
18. 18.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
19. 19.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Title: 17 px
    Footer: 26 px (a) Title (b) Footer (c) Body text
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Caption: 18 px
    Menu: 24 px
    Footer: 19 px
    Label: 14 px
22. 22.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
23. 23.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) icons with no labels (d) strong colour contrast
25. 25.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Menu: 22 px
    Hint: 10 px
27. 27.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
28. 28.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Label: 28 px
    Caption: 11 px
    Menu: 21 px
    Title: 20 px (a) Body text (b) Menu (c) Caption (d) Label
30. 30.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) text that can grow (d) icons with no labels
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Menu: 12 px
    Body text: 24 px
    Footer: 25 px
    Caption: 26 px (a) Body text (b) Title (c) Menu (d) Footer
32. 32.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
34. 34.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
35. 35.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) sudden loud sounds (d) text that can grow
36. 36.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) text that can grow (d) fast-flashing lights
37. 37.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
38. 38.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a bright colour (d) a text label
39. 39.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
40. 40.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?

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