App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 147 · 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.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
2. 2.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 15 px
   Label: 10 px
   Menu: 11 px
4. 4.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
5. 5.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) captions on videos (d) fast-flashing lights
6. 6.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 12 px
   Hint: 24 px
   Title: 27 px (a) Title (b) Label (c) Hint
8. 8.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) text that can grow (d) big touch targets
9. 9.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
10. 10.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
11. 11.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) colour as the only clue (d) tiny tap areas
12. 12.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
13. 13.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) icons with no labels (d) text that can grow
14. 14.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) text that can grow (d) sudden loud sounds
15. 15.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
17. 17.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Footer: 13 px
    Hint: 22 px
    Menu: 23 px
    Caption: 18 px (a) Label (b) Hint (c) Footer (d) Menu
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Body text: 13 px
    Footer: 23 px
    Label: 28 px
    Caption: 17 px (a) Body text (b) Footer (c) Label (d) Hint
20. 20.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
21. 21.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) captions on videos (d) fast-flashing lights
22. 22.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) sudden loud sounds
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Label: 19 px
    Hint: 21 px (a) Hint (b) Label (c) Body text
24. 24.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) fast-flashing lights (d) strong colour contrast
25. 25.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
26. 26.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
27. 27.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
28. 28.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
29. 29.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) sudden loud sounds (d) big touch targets
30. 30.Which of these makes the app harder to use? (a) colour as the only clue (b) text that can grow (c) big touch targets (d) strong colour contrast
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Title: 10 px
    Footer: 24 px
32. 32.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
33. 33.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) tiny tap areas (d) colour as the only clue
35. 35.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Label: 11 px
    Title: 13 px
    Footer: 12 px
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 20 px
    Body text: 27 px
    Menu: 11 px
    Hint: 16 px (a) Menu (b) Body text (c) Hint (d) Caption
38. 38.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
39. 39.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
40. 40.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True

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