App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 62 · 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.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
2. 2.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
3. 3.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) captions on videos
4. 4.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
6. 6.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 20 px
   Hint: 22 px
   Footer: 17 px
8. 8.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
9. 9.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Hint: 22 px
    Title: 9 px (a) Hint (b) Footer (c) Title
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Body text: 19 px
    Caption: 21 px
    Hint: 20 px
    Label: 16 px (a) Caption (b) Title (c) Body text (d) Hint
14. 14.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
15. 15.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) plays music (d) makes text tiny
16. 16.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
17. 17.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Body text: 23 px
    Caption: 21 px
    Title: 19 px (a) Title (b) Caption (c) Hint (d) Body text
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Footer: 20 px
    Hint: 10 px
20. 20.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
21. 21.Which of these makes the app harder to use? (a) captions on videos (b) icons with no labels (c) big touch targets (d) strong colour contrast
22. 22.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) icons with no labels (d) colour as the only clue
23. 23.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Title: 18 px
    Caption: 23 px
    Footer: 14 px
    Menu: 11 px
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 20 px
    Title: 23 px
    Hint: 25 px
    Label: 11 px (a) Hint (b) Footer (c) Label (d) Title
26. 26.Which of these helps everyone use the app? (a) icons with no labels (b) text that can grow (c) colour as the only clue (d) fast-flashing lights
27. 27.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) labels on every icon (d) icons with no labels
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Hint: 15 px
    Title: 11 px
    Footer: 15 px
29. 29.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
30. 30.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) colour-blind users (d) fast typists
31. 31.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) sudden loud sounds (d) text that can grow
32. 32.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
33. 33.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) fast-flashing lights (d) text that can grow
34. 34.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
35. 35.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) text that can grow (d) fast-flashing lights
36. 36.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
37. 37.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) tiny tap areas (d) text that can grow
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Body text: 22 px
    Hint: 17 px
    Caption: 21 px
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 13 px
    Footer: 23 px
    Label: 10 px
    Title: 16 px
    Menu: 24 px
40. 40.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?

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