App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 783 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 16 px
   Label: 20 px
   Caption: 24 px
2. 2.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
3. 3.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
4. 4.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
5. 5.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) takes photos (d) makes text tiny
6. 6.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) big touch targets (d) colour as the only clue
7. 7.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) the battery (d) fast typists
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 18 px
   Menu: 12 px
   Label: 23 px
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 17 px
   Menu: 11 px
   Title: 21 px
   Body text: 26 px
   Label: 23 px (a) Body text (b) Hint (c) Menu (d) Title
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Title: 18 px
    Menu: 19 px
    Label: 13 px
11. 11.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) captions on videos (d) strong colour contrast
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Title: 22 px
    Body text: 20 px
13. 13.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Caption: 20 px
    Hint: 14 px
    Label: 26 px (a) Caption (b) Footer (c) Hint (d) Label
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Body text: 9 px
    Label: 20 px (a) Menu (b) Label (c) Body text
16. 16.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) big touch targets
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.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Hint: 22 px
    Body text: 22 px
    Footer: 13 px
    Label: 10 px
20. 20.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) labels on every icon (d) sudden loud sounds
21. 21.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Body text: 20 px
    Caption: 21 px
    Menu: 10 px
    Footer: 23 px (a) Body text (b) Menu (c) Title (d) Caption
23. 23.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) tiny tap areas (d) icons with no labels
24. 24.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) big touch targets (d) text that can grow
25. 25.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Menu: 12 px
    Footer: 20 px
27. 27.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
28. 28.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
29. 29.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
30. 30.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
32. 32.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) sudden loud sounds (d) colour as the only clue
33. 33.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to add colour (d) to hide the sound
34. 34.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
35. 35.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
36. 36.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) text that can grow (d) tiny tap areas
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Title: 20 px
    Hint: 9 px (a) Body text (b) Hint (c) Title
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Caption: 18 px
    Body text: 22 px (a) Caption (b) Body text (c) Footer
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Menu: 14 px
    Label: 25 px
    Hint: 17 px (a) Label (b) Body text (c) Menu (d) Hint
40. 40.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

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