App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 236 · 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.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
2. 2.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 18 px
   Menu: 19 px
   Hint: 9 px (a) Body text (b) Menu (c) Hint
4. 4.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
5. 5.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
6. 6.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
7. 7.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) sudden loud sounds (d) captions on videos
8. 8.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
9. 9.♿ A screen has 6 icon buttons. Only 1 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?
    Menu: 11 px
    Caption: 21 px
    Label: 20 px
    Hint: 28 px
    Title: 24 px (a) Label (b) Caption (c) Menu (d) Hint
11. 11.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
12. 12.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) the server (d) fast typists
14. 14.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) captions on videos (d) big touch targets
15. 15.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) strong colour contrast (d) tiny tap areas
16. 16.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) tiny tap areas (d) icons with no labels
17. 17.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
18. 18.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
19. 19.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
20. 20.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
21. 21.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
22. 22.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) text that can grow
23. 23.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Caption: 23 px
    Hint: 21 px (a) Caption (b) Hint (c) Body text
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
26. 26.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
27. 27.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
28. 28.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) colour as the only clue (d) text that can grow
29. 29.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) labels on every icon (d) icons with no labels
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Body text: 16 px
    Hint: 24 px
    Title: 12 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Footer: 27 px
    Label: 9 px (a) Footer (b) Label (c) Hint
32. 32.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
33. 33.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
34. 34.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
35. 35.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
36. 36.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Label: 9 px
    Hint: 20 px
    Menu: 22 px
    Title: 23 px (a) Hint (b) Footer (c) Label (d) Menu
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Title: 15 px
    Footer: 23 px
    Menu: 24 px
    Caption: 19 px
39. 39.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) colour as the only clue (d) fast-flashing lights
40. 40.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) labels on every icon (d) text that can grow

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