App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 317 · 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: colour as the only clue? (a) helps everyone (b) makes it harder
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 17 px
   Hint: 24 px
   Footer: 9 px
   Title: 22 px (a) Hint (b) Title (c) Body text (d) Footer
3. 3.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
4. 4.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) icons with no labels
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 19 px
   Body text: 16 px
   Caption: 10 px
   Footer: 23 px (a) Footer (b) Caption (c) Body text (d) Menu
6. 6.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 11 px
   Caption: 28 px
   Body text: 21 px
   Footer: 17 px (a) Footer (b) Title (c) Body text (d) Caption
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 12 px
   Menu: 12 px
   Label: 24 px
   Caption: 10 px
   Hint: 13 px
9. 9.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Caption: 21 px
    Title: 12 px
    Footer: 26 px (a) Footer (b) Body text (c) Title (d) Caption
11. 11.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
12. 12.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Hint: 25 px
    Footer: 10 px
    Body text: 24 px (a) Hint (b) Footer (c) Body text (d) Title
14. 14.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to slow them down (d) to add colour
15. 15.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) fast-flashing lights (d) labels on every icon
16. 16.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Caption: 22 px
    Menu: 12 px (a) Menu (b) Caption (c) Title
18. 18.♿ 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
19. 19.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) text that can grow (d) icons with no labels
21. 21.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Title: 24 px
    Label: 20 px
    Body text: 19 px
    Menu: 19 px
23. 23.♿ A screen has 12 icon buttons. Only 8 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: strong colour contrast? (a) helps everyone (b) makes it harder
25. 25.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) colour as the only clue (d) captions on videos
26. 26.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Hint: 22 px
    Caption: 15 px
    Body text: 20 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Label: 11 px
    Caption: 18 px
29. 29.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) labels on every icon (d) sudden loud sounds
30. 30.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
31. 31.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
32. 32.Which of these helps everyone use the app? (a) colour as the only clue (b) labels on every icon (c) tiny tap areas (d) fast-flashing lights
33. 33.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 22 px
    Body text: 23 px
    Caption: 9 px (a) Body text (b) Caption (c) Label
36. 36.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
37. 37.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Hint: 16 px
    Menu: 16 px
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Body text: 16 px
    Title: 19 px
40. 40.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone

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