App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 65 · 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.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
2. 2.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) big touch targets (d) colour as the only clue
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 23 px
   Hint: 18 px
   Title: 10 px
   Label: 16 px (a) Caption (b) Label (c) Hint (d) Title
4. 4.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
5. 5.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) tiny tap areas (d) strong colour contrast
6. 6.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
7. 7.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
10. 10.🔍 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
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Body text: 24 px
    Title: 16 px
    Footer: 18 px
    Hint: 22 px
12. 12.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
13. 13.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) captions on videos (d) colour as the only clue
14. 14.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
15. 15.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
16. 16.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) icons with no labels (d) labels on every icon
17. 17.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
18. 18.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
19. 19.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) captions on videos
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Label: 21 px
    Footer: 11 px
21. 21.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) strong colour contrast (d) colour as the only clue
22. 22.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Menu: 19 px
    Label: 11 px
    Caption: 28 px
    Body text: 16 px (a) Hint (b) Label (c) Caption (d) Menu
24. 24.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
25. 25.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) big touch targets
26. 26.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
27. 27.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
28. 28.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Caption: 18 px
    Hint: 16 px (a) Label (b) Caption (c) Hint
30. 30.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Footer: 11 px
    Title: 17 px (a) Body text (b) Footer (c) Title
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Menu: 15 px
    Body text: 19 px
33. 33.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) strong colour contrast (d) sudden loud sounds
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Hint: 24 px
    Caption: 14 px
    Label: 25 px (a) Title (b) Label (c) Caption (d) Hint
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 24 px
    Menu: 10 px
    Caption: 22 px (a) Body text (b) Caption (c) Menu
37. 37.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Footer: 12 px
    Label: 28 px (a) Title (b) Label (c) Footer
39. 39.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) icons with no labels (d) sudden loud sounds
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Body text: 19 px
    Caption: 22 px
    Menu: 10 px (a) Menu (b) Caption (c) Body text (d) Hint

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