App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 810 · 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.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 14 px
   Hint: 15 px
   Caption: 24 px
   Body text: 19 px
   Label: 12 px
3. 3.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) strong colour contrast (d) tiny tap areas
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 23 px
   Hint: 11 px
   Menu: 24 px
   Title: 22 px
   Label: 19 px (a) Caption (b) Title (c) Menu (d) Hint
5. 5.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) labels on every icon
6. 6.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) colour as the only clue
7. 7.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) sudden loud sounds (d) big touch targets
10. 10.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) plays music (d) makes text tiny
11. 11.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) captions on videos
12. 12.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
13. 13.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
14. 14.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
15. 15.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
16. 16.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
17. 17.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Footer: 19 px
    Body text: 19 px
    Label: 10 px (a) Body text (b) Label (c) Title (d) Footer
19. 19.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) big touch targets (d) icons with no labels
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Label: 19 px
    Title: 10 px
    Menu: 27 px
    Hint: 16 px (a) Title (b) Label (c) Menu (d) Footer
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Footer: 18 px
    Hint: 19 px
    Caption: 25 px
    Label: 16 px (a) Caption (b) Hint (c) Footer (d) Body text
22. 22.Which of these helps everyone use the app? (a) labels on every icon (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
23. 23.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
25. 25.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) only experts (d) nobody
26. 26.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) tiny tap areas (d) labels on every icon
27. 27.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) icons with no labels (d) strong colour contrast
29. 29.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
30. 30.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Label: 20 px
    Caption: 21 px
32. 32.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
33. 33.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
34. 34.Which of these makes the app harder to use? (a) text that can grow (b) tiny tap areas (c) big touch targets (d) labels on every icon
35. 35.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.Which of these makes the app harder to use? (a) fast-flashing lights (b) strong colour contrast (c) labels on every icon (d) big touch targets
37. 37.Which of these makes the app harder to use? (a) strong colour contrast (b) colour as the only clue (c) big touch targets (d) labels on every icon
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Caption: 18 px
    Hint: 21 px
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 14 px
    Menu: 21 px
    Body text: 22 px (a) Body text (b) Title (c) Menu
40. 40.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) labels on every icon (d) big touch targets

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