App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 201 · 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 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
2. 2.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
3. 3.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
5. 5.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 21 px
   Menu: 24 px
   Title: 17 px
   Caption: 13 px
7. 7.Which of these makes the app harder to use? (a) colour as the only clue (b) captions on videos (c) strong colour contrast (d) labels on every icon
8. 8.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
9. 9.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) text that can grow (d) sudden loud sounds
10. 10.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
11. 11.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Body text: 16 px
    Hint: 14 px
    Title: 17 px
    Footer: 11 px
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Caption: 16 px
    Menu: 17 px
    Label: 22 px
14. 14.Which of these helps everyone use the app? (a) captions on videos (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
15. 15.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
16. 16.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
17. 17.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
18. 18.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a bright colour (d) a text label
19. 19.🔍 Which is the odd one out? (a) fast-flashing lights (b) captions on videos (c) sudden loud sounds (d) colour as the only clue
20. 20.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) tiny tap areas (d) labels on every icon
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Hint: 26 px
    Menu: 11 px (a) Hint (b) Menu (c) Body text
22. 22.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
24. 24.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.Which of these makes the app harder to use? (a) tiny tap areas (b) text that can grow (c) big touch targets (d) labels on every icon
26. 26.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) tiny tap areas (d) sudden loud sounds
27. 27.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 15 px
    Body text: 13 px
    Title: 14 px
    Menu: 10 px
29. 29.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
30. 30.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) strong colour contrast
31. 31.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
32. 32.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
33. 33.Which of these makes the app harder to use? (a) captions on videos (b) fast-flashing lights (c) labels on every icon (d) text that can grow
34. 34.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) sudden loud sounds (d) colour as the only clue
35. 35.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
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.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Body text: 25 px
    Footer: 17 px
    Caption: 16 px (a) Footer (b) Title (c) Body text (d) Caption
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 16 px
    Body text: 19 px
    Label: 21 px
    Title: 24 px
40. 40.Which of these makes the app harder to use? (a) strong colour contrast (b) icons with no labels (c) labels on every icon (d) captions on videos

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