App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 331 · 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) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 16 px
   Hint: 14 px
   Title: 10 px
   Caption: 14 px
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 26 px
   Menu: 16 px
   Footer: 17 px
   Label: 11 px
   Caption: 22 px (a) Title (b) Menu (c) Footer (d) Label
4. 4.Which of these helps everyone use the app? (a) captions on videos (b) tiny tap areas (c) sudden loud sounds (d) icons with no labels
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) captions on videos (d) colour as the only clue
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 20 px
   Hint: 12 px
   Body text: 10 px
   Title: 16 px
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 12 px
   Footer: 14 px
   Caption: 18 px
   Title: 10 px
8. 8.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
9. 9.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
10. 10.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) sudden loud sounds (d) strong colour contrast
11. 11.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) strong colour contrast (d) tiny tap areas
12. 12.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
13. 13.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) labels on every icon (d) colour as the only clue
14. 14.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) colour as the only clue
15. 15.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
16. 16.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Body text: 17 px
    Hint: 17 px
    Menu: 13 px
    Label: 17 px
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Title: 18 px
    Hint: 24 px
    Caption: 15 px
19. 19.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) text that can grow (d) captions on videos
20. 20.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
22. 22.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
23. 23.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
25. 25.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) sudden loud sounds (d) big touch targets
26. 26.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Title: 14 px
    Caption: 21 px
    Body text: 25 px (a) Title (b) Caption (c) Body text (d) Hint
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 16 px
    Title: 10 px
    Menu: 23 px
    Caption: 13 px
29. 29.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
30. 30.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
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: 21 px
    Body text: 28 px
    Footer: 19 px
    Title: 12 px (a) Body text (b) Title (c) Label (d) Footer
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Footer: 25 px
    Hint: 10 px (a) Footer (b) Hint (c) Title
34. 34.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
35. 35.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
36. 36.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
37. 37.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
38. 38.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Label: 14 px
    Body text: 26 px
    Footer: 19 px
    Menu: 19 px (a) Title (b) Footer (c) Body text (d) Label
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Title: 11 px
    Hint: 17 px
    Label: 14 px
    Caption: 23 px

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