App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 46 · 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.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
2. 2.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) takes photos (d) makes text tiny
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 11 px
   Label: 17 px
   Footer: 22 px
   Title: 16 px
   Menu: 26 px (a) Label (b) Caption (c) Footer (d) Title
4. 4.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 20 px
   Label: 23 px
   Footer: 19 px
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 18 px
   Label: 15 px
   Title: 10 px
7. 7.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
8. 8.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) strong colour contrast (d) captions on videos
9. 9.🔍 Which is the odd one out? (a) sudden loud sounds (b) strong colour contrast (c) captions on videos (d) text that can grow
10. 10.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) fast-flashing lights (d) strong colour contrast
11. 11.♿ A screen has 10 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) strong colour contrast (b) icons with no labels (c) big touch targets (d) text that can grow
13. 13.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
14. 14.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
15. 15.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
16. 16.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) text that can grow
17. 17.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Footer: 24 px
    Label: 10 px
    Caption: 23 px
19. 19.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to slow them down (d) to add colour
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Label: 22 px
    Body text: 13 px
    Title: 22 px
    Caption: 17 px
21. 21.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
22. 22.Which of these makes the app harder to use? (a) big touch targets (b) sudden loud sounds (c) text that can grow (d) labels on every icon
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 13 px
    Body text: 19 px
    Hint: 21 px (a) Hint (b) Menu (c) Body text
24. 24.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Hint: 19 px
    Caption: 13 px
    Footer: 23 px
    Label: 23 px
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Title: 13 px
    Hint: 16 px (a) Title (b) Footer (c) Hint
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Menu: 13 px
    Footer: 23 px
28. 28.Which of these makes the app harder to use? (a) big touch targets (b) icons with no labels (c) captions on videos (d) labels on every icon
29. 29.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
30. 30.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
31. 31.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
32. 32.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Body text: 17 px
    Hint: 19 px
    Title: 24 px
    Menu: 13 px
34. 34.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
36. 36.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
37. 37.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) nobody (d) only experts
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Title: 25 px
    Hint: 24 px
    Body text: 9 px
    Menu: 18 px (a) Caption (b) Title (c) Hint (d) Body text
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 10 px
    Title: 28 px
    Hint: 21 px (a) Hint (b) Title (c) Caption
40. 40.Which of these helps everyone use the app? (a) labels on every icon (b) tiny tap areas (c) icons with no labels (d) sudden loud sounds

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