App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 735 · 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: captions on videos? (a) makes it harder (b) helps everyone
2. 2.Which of these makes the app harder to use? (a) icons with no labels (b) captions on videos (c) big touch targets (d) labels on every icon
3. 3.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
4. 4.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
5. 5.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) text that can grow (d) tiny tap areas
6. 6.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
7. 7.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 14 px
   Footer: 23 px
   Hint: 13 px
   Body text: 18 px
9. 9.♿ 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
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Menu: 11 px
    Caption: 16 px
    Title: 12 px
11. 11.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to add colour (d) to hide the sound
12. 12.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 23 px
    Menu: 21 px
    Footer: 19 px
    Caption: 21 px
14. 14.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) icons with no labels (d) labels on every icon
16. 16.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) fast-flashing lights (d) big touch targets
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Body text: 24 px
    Footer: 28 px (a) Body text (b) Footer (c) Label
18. 18.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) tiny tap areas (d) big touch targets
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Caption: 25 px
    Footer: 26 px
    Title: 12 px (a) Caption (b) Title (c) Footer (d) Body text
20. 20.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
21. 21.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
22. 22.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
23. 23.♿ A screen has 8 icon buttons. Only 5 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: fast-flashing lights? (a) makes it harder (b) helps everyone
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 13 px
    Hint: 28 px
    Menu: 26 px
    Title: 22 px
    Body text: 19 px (a) Title (b) Menu (c) Hint (d) Caption
26. 26.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
27. 27.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
28. 28.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
29. 29.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
30. 30.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Hint: 16 px
    Caption: 24 px
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Body text: 27 px
    Menu: 18 px (a) Caption (b) Body text (c) Menu
33. 33.Which of these makes the app harder to use? (a) fast-flashing lights (b) labels on every icon (c) big touch targets (d) captions on videos
34. 34.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Title: 21 px
    Hint: 14 px
    Caption: 21 px
36. 36.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) icons with no labels (d) colour as the only clue
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Hint: 26 px
    Caption: 9 px
    Menu: 20 px
    Footer: 27 px (a) Caption (b) Label (c) Hint (d) Menu
38. 38.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
39. 39.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
40. 40.True or false: “text that can grow” makes the app harder to use. (a) True (b) False

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