App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 463 · 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.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a sound (d) a long animation
2. 2.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
3. 3.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 19 px
   Body text: 20 px
   Hint: 10 px
5. 5.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) strong colour contrast
6. 6.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
7. 7.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
8. 8.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Caption: 23 px
    Menu: 26 px
    Body text: 26 px (a) Body text (b) Menu (c) Title (d) Caption
11. 11.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
12. 12.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Menu: 17 px
    Title: 9 px
    Body text: 19 px
    Hint: 27 px (a) Title (b) Label (c) Body text (d) Menu
14. 14.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
15. 15.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) big touch targets (d) colour as the only clue
16. 16.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) captions on videos (d) labels on every icon
17. 17.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) labels on every icon (d) tiny tap areas
18. 18.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
19. 19.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only the coder (d) only experts
21. 21.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) fast-flashing lights (d) captions on videos
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) fast-flashing lights (d) big touch targets
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Body text: 19 px
    Caption: 19 px (a) Body text (b) Caption (c) Title
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 20 px
    Title: 17 px
    Menu: 10 px (a) Title (b) Footer (c) Menu
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Title: 13 px
    Menu: 18 px (a) Label (b) Menu (c) Title
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) colour as the only clue (d) labels on every icon
27. 27.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
28. 28.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) big touch targets
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Title: 20 px
    Caption: 25 px
    Body text: 19 px (a) Caption (b) Menu (c) Body text (d) Title
30. 30.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) tiny tap areas
31. 31.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
32. 32.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 22 px
    Caption: 16 px
    Label: 23 px
    Body text: 26 px
    Title: 9 px (a) Caption (b) Title (c) Footer (d) Label
34. 34.Which of these makes the app harder to use? (a) strong colour contrast (b) colour as the only clue (c) labels on every icon (d) big touch targets
35. 35.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Hint: 10 px
    Footer: 16 px
    Label: 20 px
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Body text: 10 px
    Title: 13 px
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Body text: 24 px
    Caption: 14 px
    Hint: 19 px
39. 39.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
40. 40.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) icons with no labels (d) labels on every icon

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