App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 339 · 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.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) text that can grow (d) icons with no labels
2. 2.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
4. 4.♿ 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
5. 5.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) big touch targets (d) fast-flashing lights
6. 6.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
7. 7.Which of these makes the app harder to use? (a) colour as the only clue (b) text that can grow (c) big touch targets (d) strong colour contrast
8. 8.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 10 px
   Title: 22 px
   Menu: 22 px
   Label: 11 px
10. 10.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
11. 11.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
12. 12.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Title: 14 px
    Hint: 22 px
14. 14.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Title: 16 px
    Caption: 9 px
    Footer: 23 px (a) Title (b) Footer (c) Label (d) Caption
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Body text: 20 px
    Label: 27 px
    Footer: 23 px
    Caption: 27 px (a) Body text (b) Label (c) Title (d) Footer
17. 17.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
18. 18.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Title: 18 px
    Label: 12 px (a) Caption (b) Title (c) Label
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 23 px
    Caption: 11 px
    Title: 10 px
21. 21.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) sudden loud sounds (d) strong colour contrast
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Title: 16 px
    Label: 24 px
    Caption: 12 px (a) Menu (b) Label (c) Title (d) Caption
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.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) big touch targets (d) captions on videos
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Label: 19 px
    Body text: 24 px
    Title: 18 px (a) Title (b) Label (c) Body text (d) Caption
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Title: 16 px
    Hint: 14 px
    Footer: 22 px
    Caption: 20 px
28. 28.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Menu: 15 px
    Caption: 21 px
    Footer: 11 px
30. 30.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) labels on every icon
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Menu: 16 px
    Title: 11 px
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Menu: 18 px
    Footer: 21 px (a) Title (b) Footer (c) Menu
33. 33.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Title: 28 px
    Body text: 23 px
    Hint: 19 px (a) Footer (b) Title (c) Hint (d) Body text
35. 35.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) so anyone can follow (d) to slow them down
37. 37.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
38. 38.Which of these helps everyone use the app? (a) fast-flashing lights (b) big touch targets (c) sudden loud sounds (d) tiny tap areas
39. 39.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
40. 40.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False

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