App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 776 · 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: “sudden loud sounds” helps everyone use the app. (a) False (b) True
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 22 px
   Footer: 16 px
   Label: 18 px
   Title: 12 px
3. 3.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 18 px
   Body text: 24 px
   Hint: 14 px (a) Title (b) Hint (c) Body text
5. 5.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
6. 6.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
7. 7.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 10 px
   Body text: 27 px
   Menu: 24 px (a) Body text (b) Menu (c) Label
9. 9.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
10. 10.Which of these helps everyone use the app? (a) colour as the only clue (b) strong colour contrast (c) icons with no labels (d) fast-flashing lights
11. 11.Which of these makes the app harder to use? (a) strong colour contrast (b) icons with no labels (c) captions on videos (d) labels on every icon
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 24 px
    Menu: 13 px
    Caption: 24 px
    Title: 27 px (a) Title (b) Caption (c) Footer (d) Menu
13. 13.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) colour as the only clue
14. 14.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) text that can grow (d) fast-flashing lights
15. 15.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Title: 14 px
    Caption: 18 px
    Menu: 18 px
17. 17.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) so anyone can follow (d) to slow them down
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Title: 26 px
    Label: 16 px
    Body text: 22 px (a) Label (b) Title (c) Footer (d) Body text
19. 19.♿ 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
20. 20.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
21. 21.Which of these makes the app harder to use? (a) colour as the only clue (b) strong colour contrast (c) text that can grow (d) big touch targets
22. 22.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
23. 23.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Title: 14 px
    Hint: 17 px
    Caption: 27 px
    Label: 21 px (a) Menu (b) Caption (c) Hint (d) Title
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Title: 13 px
    Caption: 17 px
    Body text: 24 px
26. 26.Which of these makes the app harder to use? (a) sudden loud sounds (b) labels on every icon (c) strong colour contrast (d) big touch targets
27. 27.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
28. 28.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
29. 29.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
30. 30.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) big touch targets (d) sudden loud sounds
31. 31.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
32. 32.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) fast-flashing lights (d) captions on videos
33. 33.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (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?
    Hint: 20 px
    Footer: 15 px
    Caption: 15 px
    Title: 19 px
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Body text: 12 px
    Title: 24 px
    Label: 11 px
36. 36.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) text that can grow
37. 37.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
38. 38.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) tiny tap areas (d) sudden loud sounds
39. 39.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
40. 40.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?

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