App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 693 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 27 px
   Label: 23 px
   Title: 9 px (a) Body text (b) Title (c) Label
2. 2.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
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.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) captions on videos (d) strong colour contrast
5. 5.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) captions on videos (d) fast-flashing lights
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 16 px
   Label: 22 px
   Footer: 23 px
   Body text: 19 px
8. 8.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 12 px
   Hint: 19 px
   Body text: 18 px (a) Hint (b) Label (c) Body text
10. 10.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) captions on videos (d) colour as the only clue
11. 11.Which of these helps everyone use the app? (a) fast-flashing lights (b) strong colour contrast (c) colour as the only clue (d) tiny tap areas
12. 12.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
13. 13.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) sudden loud sounds (d) text that can grow
14. 14.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Title: 20 px
    Hint: 13 px
    Footer: 20 px
    Menu: 24 px
16. 16.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) sudden loud sounds (d) big touch targets
17. 17.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) strong colour contrast (d) captions on videos
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Hint: 24 px
    Footer: 17 px
    Caption: 14 px
    Body text: 27 px (a) Caption (b) Footer (c) Hint (d) Menu
19. 19.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to add colour (d) to slow them down
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Title: 18 px
    Body text: 9 px (a) Body text (b) Title (c) Footer
21. 21.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
22. 22.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Label: 14 px
    Menu: 22 px
    Caption: 21 px
    Title: 10 px
24. 24.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Caption: 17 px
    Title: 12 px
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 15 px
    Hint: 18 px
    Label: 19 px
    Caption: 15 px
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Hint: 17 px
    Caption: 12 px (a) Footer (b) Hint (c) Caption
28. 28.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
29. 29.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
30. 30.Which of these helps everyone use the app? (a) big touch targets (b) tiny tap areas (c) fast-flashing lights (d) sudden loud sounds
31. 31.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
32. 32.Which of these makes the app harder to use? (a) big touch targets (b) fast-flashing lights (c) captions on videos (d) labels on every icon
33. 33.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) text that can grow (d) icons with no labels
34. 34.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Footer: 13 px
    Body text: 22 px (a) Footer (b) Title (c) Body text
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 11 px
    Body text: 21 px
    Menu: 27 px (a) Body text (b) Menu (c) Hint
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 21 px
    Footer: 13 px
    Caption: 23 px
38. 38.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
39. 39.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
40. 40.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?

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