App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 591 · 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.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 23 px
   Caption: 21 px
   Hint: 10 px
3. 3.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) text that can grow (d) sudden loud sounds
4. 4.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) strong colour contrast (d) icons with no labels
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 17 px
   Label: 17 px
   Title: 16 px
   Body text: 23 px
   Hint: 20 px
6. 6.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
7. 7.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) strong colour contrast (d) colour as the only clue
8. 8.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 23 px
   Footer: 20 px
   Label: 24 px
10. 10.Which of these makes the app harder to use? (a) icons with no labels (b) labels on every icon (c) text that can grow (d) strong colour contrast
11. 11.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
12. 12.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
14. 14.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) colour as the only clue (d) fast-flashing lights
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Hint: 13 px
    Title: 24 px
    Footer: 17 px (a) Hint (b) Footer (c) Title (d) Body text
16. 16.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) captions on videos (d) strong colour contrast
17. 17.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) nobody (d) only experts
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Label: 24 px
    Footer: 19 px (a) Hint (b) Label (c) Footer
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Menu: 12 px
    Title: 15 px
    Footer: 13 px
    Label: 22 px
20. 20.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
21. 21.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
22. 22.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
23. 23.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Title: 11 px
    Hint: 24 px (a) Title (b) Footer (c) Hint
25. 25.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Title: 13 px
    Label: 22 px
28. 28.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) labels on every icon (d) colour as the only clue
29. 29.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
30. 30.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 16 px
    Hint: 20 px
    Title: 15 px
    Body text: 13 px
    Menu: 21 px
32. 32.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
33. 33.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
34. 34.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) fast-flashing lights (d) text that can grow
35. 35.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) fast-flashing lights (d) big touch targets
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Footer: 24 px
    Caption: 24 px
    Body text: 20 px (a) Footer (b) Caption (c) Title (d) Body text
37. 37.Which of these makes the app harder to use? (a) text that can grow (b) tiny tap areas (c) strong colour contrast (d) big touch targets
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Footer: 18 px
    Menu: 19 px
    Body text: 20 px
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 20 px
    Label: 16 px
    Hint: 20 px
    Title: 13 px
    Caption: 16 px (a) Footer (b) Label (c) Title (d) Hint
40. 40.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?

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