App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 45 · 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.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) only the coder (d) nobody
2. 2.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) text that can grow (d) icons with no labels
3. 3.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) strong colour contrast (d) tiny tap areas
4. 4.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) the server (d) fast typists
5. 5.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
6. 6.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 24 px
   Title: 20 px
   Footer: 12 px
8. 8.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
10. 10.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) labels on every icon (d) colour as the only clue
11. 11.Which of these helps everyone use the app? (a) strong colour contrast (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
12. 12.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) icons with no labels (d) colour as the only clue
14. 14.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) takes photos (d) makes text tiny
15. 15.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Footer: 26 px
    Title: 19 px
    Hint: 25 px (a) Hint (b) Footer (c) Title (d) Menu
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Title: 21 px
    Caption: 13 px
    Body text: 17 px
    Menu: 20 px
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.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Body text: 22 px
    Menu: 11 px
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Footer: 9 px
    Caption: 27 px (a) Body text (b) Caption (c) Footer
22. 22.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) text that can grow (d) icons with no labels
23. 23.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
24. 24.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
25. 25.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) text that can grow (d) tiny tap areas
27. 27.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) strong colour contrast (d) fast-flashing lights
28. 28.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Title: 15 px
    Label: 22 px
    Hint: 18 px
    Caption: 13 px
30. 30.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
31. 31.♿ A screen has 5 icon buttons. Only 4 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. How many texts on this screen are too small?
    Body text: 18 px
    Title: 12 px
    Label: 13 px
33. 33.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
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: 12 px
    Hint: 17 px
    Title: 24 px
    Menu: 28 px (a) Hint (b) Title (c) Label (d) Menu
36. 36.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
37. 37.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
38. 38.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
39. 39.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Menu: 21 px
    Label: 28 px
    Body text: 9 px
    Footer: 19 px (a) Body text (b) Menu (c) Label (d) Hint

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