App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 275 · 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 of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) icons with no labels (d) labels on every icon
2. 2.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) captions on videos (d) strong colour contrast
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 17 px
   Body text: 18 px
   Label: 13 px
   Title: 16 px (a) Title (b) Label (c) Body text (d) Footer
4. 4.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) so anyone can follow (d) to hide the sound
5. 5.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 25 px
   Menu: 24 px
   Body text: 24 px
   Caption: 26 px
   Label: 9 px (a) Menu (b) Label (c) Title (d) Body text
7. 7.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 23 px
   Label: 9 px
   Footer: 25 px
   Caption: 18 px (a) Caption (b) Footer (c) Label (d) Menu
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 21 px
   Label: 20 px
   Body text: 20 px
   Caption: 25 px
   Title: 13 px (a) Hint (b) Body text (c) Label (d) Title
10. 10.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
11. 11.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) plays music (d) makes text tiny
12. 12.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Title: 24 px
    Caption: 18 px
    Footer: 14 px (a) Footer (b) Label (c) Title (d) Caption
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Title: 24 px
    Label: 15 px
    Hint: 17 px
16. 16.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
17. 17.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
18. 18.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) sudden loud sounds
19. 19.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
20. 20.🔍 Which is the odd one out? (a) fast-flashing lights (b) captions on videos (c) text that can grow (d) strong colour contrast
21. 21.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
22. 22.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
23. 23.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
24. 24.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
27. 27.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Footer: 17 px
    Menu: 19 px
    Caption: 27 px
    Body text: 13 px (a) Footer (b) Menu (c) Body text (d) Title
29. 29.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) labels on every icon (d) strong colour contrast
30. 30.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
31. 31.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Menu: 19 px
    Body text: 27 px (a) Menu (b) Label (c) Body text
33. 33.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
34. 34.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
35. 35.Which of these helps everyone use the app? (a) text that can grow (b) tiny tap areas (c) icons with no labels (d) colour as the only clue
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Hint: 18 px
    Menu: 10 px (a) Label (b) Hint (c) Menu
37. 37.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
38. 38.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
39. 39.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
40. 40.Which of these makes the app harder to use? (a) fast-flashing lights (b) labels on every icon (c) text that can grow (d) captions on videos

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