App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 772 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 12 px
   Menu: 20 px
   Caption: 22 px
   Title: 25 px (a) Caption (b) Title (c) Menu (d) Body text
3. 3.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
4. 4.Which of these makes the app harder to use? (a) icons with no labels (b) labels on every icon (c) text that can grow (d) captions on videos
5. 5.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
6. 6.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
7. 7.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) big touch targets (d) tiny tap areas
8. 8.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) strong colour contrast (d) text that can grow
9. 9.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
10. 10.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) tiny tap areas (d) captions on videos
12. 12.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Menu: 19 px
    Label: 17 px
    Title: 19 px
    Body text: 16 px
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Footer: 16 px
    Label: 20 px
    Body text: 12 px
    Title: 23 px
15. 15.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a text label (d) a long animation
16. 16.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
17. 17.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
18. 18.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
19. 19.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) strong colour contrast (d) colour as the only clue
20. 20.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) fast-flashing lights (d) big touch targets
21. 21.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
22. 22.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) text that can grow (d) labels on every icon
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Footer: 19 px
    Caption: 22 px
    Label: 10 px
    Hint: 14 px
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Body text: 17 px
    Footer: 10 px
    Label: 12 px
25. 25.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 20 px
    Title: 28 px
    Body text: 13 px
    Footer: 20 px (a) Title (b) Footer (c) Body text (d) Caption
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Title: 23 px
    Menu: 18 px
    Body text: 11 px
    Hint: 18 px
28. 28.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
29. 29.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
30. 30.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 21 px
    Menu: 12 px
    Caption: 26 px (a) Menu (b) Caption (c) Title
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Footer: 18 px
    Label: 25 px
    Menu: 17 px (a) Footer (b) Menu (c) Body text (d) Label
33. 33.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) big touch targets (d) sudden loud sounds
34. 34.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
35. 35.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 27 px
    Hint: 19 px
    Title: 9 px
    Caption: 24 px
    Menu: 19 px (a) Hint (b) Caption (c) Label (d) Title
37. 37.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
38. 38.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) labels on every icon (d) tiny tap areas
39. 39.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Body text: 10 px
    Menu: 13 px

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