App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 146 · 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.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
2. 2.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 21 px
   Menu: 13 px
   Label: 23 px
4. 4.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) captions on videos (d) text that can grow
6. 6.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) labels on every icon (d) colour as the only clue
7. 7.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) colour as the only clue (d) big touch targets
9. 9.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
10. 10.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
11. 11.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
13. 13.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Footer: 24 px
    Body text: 19 px
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Body text: 13 px
    Menu: 10 px
    Title: 24 px
    Footer: 11 px
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Title: 26 px
    Caption: 25 px
    Body text: 28 px (a) Caption (b) Footer (c) Title (d) Body text
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Caption: 23 px
    Title: 14 px (a) Title (b) Caption (c) Footer
18. 18.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
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Title: 22 px
    Menu: 25 px
    Caption: 10 px
    Label: 19 px (a) Caption (b) Menu (c) Title (d) Hint
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Label: 20 px
    Footer: 19 px
21. 21.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Hint: 23 px
    Label: 22 px
    Caption: 12 px
23. 23.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) captions on videos (d) big touch targets
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 17 px
    Hint: 26 px
    Body text: 10 px (a) Caption (b) Body text (c) Hint
25. 25.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Title: 19 px
    Footer: 24 px
    Menu: 9 px (a) Caption (b) Title (c) Footer (d) Menu
27. 27.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) icons with no labels (d) labels on every icon
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Caption: 20 px
    Hint: 21 px
    Footer: 21 px
    Label: 11 px
29. 29.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
30. 30.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) only the coder (d) nobody
31. 31.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) captions on videos (d) tiny tap areas
32. 32.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) captions on videos (d) text that can grow
33. 33.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Label: 21 px
    Title: 11 px
35. 35.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) colour as the only clue (d) icons with no labels
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Body text: 14 px
    Menu: 15 px
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Label: 19 px
    Hint: 9 px (a) Hint (b) Label (c) Caption
39. 39.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) strong colour contrast

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