App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 495 · 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) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
2. 2.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) fast-flashing lights (d) text that can grow
4. 4.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) colour as the only clue (d) icons with no labels
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 24 px
   Label: 11 px
   Caption: 17 px
   Body text: 25 px (a) Body text (b) Caption (c) Title (d) Label
6. 6.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 25 px
   Title: 18 px
   Label: 28 px
   Body text: 26 px
   Hint: 9 px (a) Label (b) Hint (c) Menu (d) Title
8. 8.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) sudden loud sounds (d) labels on every icon
9. 9.Which of these helps everyone use the app? (a) fast-flashing lights (b) text that can grow (c) tiny tap areas (d) colour as the only clue
10. 10.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
11. 11.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
12. 12.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) big touch targets (d) labels on every icon
13. 13.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) fast typists (d) colour-blind users
15. 15.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
16. 16.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Menu: 23 px
    Label: 11 px
    Title: 13 px
    Body text: 22 px
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 14 px
    Menu: 16 px
    Title: 16 px (a) Menu (b) Caption (c) Title
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Menu: 22 px
    Caption: 19 px
    Hint: 10 px
    Footer: 23 px (a) Hint (b) Title (c) Caption (d) Menu
20. 20.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Menu: 19 px
    Title: 12 px
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 27 px
    Body text: 21 px
    Title: 17 px
    Hint: 10 px (a) Hint (b) Caption (c) Title (d) Body text
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Label: 20 px
    Menu: 12 px
    Title: 20 px
    Hint: 19 px
24. 24.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
25. 25.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) text that can grow (d) tiny tap areas
26. 26.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
27. 27.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
28. 28.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
29. 29.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
30. 30.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
31. 31.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) fast-flashing lights (d) strong colour contrast
32. 32.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
33. 33.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) big touch targets (d) strong colour contrast
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Hint: 12 px
    Title: 28 px (a) Title (b) Footer (c) Hint
35. 35.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Label: 22 px
    Menu: 18 px
37. 37.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
38. 38.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) captions on videos
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Title: 10 px
    Menu: 26 px
    Caption: 23 px (a) Menu (b) Title (c) Body text (d) Caption

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