App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 407 · 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 of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) icons with no labels (d) big touch targets
2. 2.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
3. 3.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
4. 4.♿ A screen has 6 icon buttons. Only 4 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. Which text on this screen is too small?
   Menu: 24 px
   Hint: 25 px
   Footer: 10 px
   Label: 25 px (a) Hint (b) Menu (c) Footer (d) Label
6. 6.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
7. 7.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
8. 8.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
9. 9.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
10. 10.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Caption: 19 px
    Body text: 11 px (a) Hint (b) Body text (c) Caption
12. 12.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Body text: 20 px
    Caption: 23 px
    Hint: 10 px
14. 14.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Body text: 13 px
    Footer: 25 px
    Hint: 26 px (a) Hint (b) Footer (c) Title (d) Body text
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Title: 25 px
    Body text: 17 px (a) Body text (b) Menu (c) Title
17. 17.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
18. 18.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) fast-flashing lights (d) strong colour contrast
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Menu: 17 px
    Label: 26 px
    Caption: 27 px
    Hint: 11 px (a) Menu (b) Body text (c) Hint (d) Label
21. 21.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
22. 22.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) colour as the only clue (d) tiny tap areas
23. 23.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) text that can grow (d) colour as the only clue
24. 24.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) tiny tap areas (d) captions on videos
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Hint: 13 px
    Label: 10 px
26. 26.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Hint: 15 px
    Footer: 11 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Footer: 10 px
    Caption: 17 px
    Body text: 12 px
    Title: 12 px
29. 29.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) text that can grow (d) tiny tap areas
30. 30.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) icons with no labels (d) sudden loud sounds
31. 31.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
32. 32.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
33. 33.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Caption: 12 px
    Title: 20 px
    Body text: 24 px (a) Caption (b) Title (c) Hint (d) Body text
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Footer: 16 px
    Title: 13 px
    Label: 23 px (a) Hint (b) Footer (c) Title (d) Label
36. 36.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Body text: 15 px
    Footer: 11 px
38. 38.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Label: 15 px
    Body text: 16 px
    Title: 10 px
    Menu: 14 px
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Hint: 28 px
    Label: 9 px
    Title: 20 px (a) Hint (b) Menu (c) Label (d) Title

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