App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 551 · 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) sudden loud sounds (c) labels on every icon (d) big touch targets
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 16 px
   Footer: 21 px
   Title: 13 px
   Label: 23 px (a) Label (b) Body text (c) Title (d) Footer
3. 3.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
4. 4.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 10 px
   Title: 25 px
   Body text: 18 px
   Label: 28 px (a) Title (b) Label (c) Hint (d) Body text
6. 6.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) colour as the only clue (d) labels on every icon
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 27 px
   Body text: 28 px
   Caption: 16 px
   Menu: 11 px
   Footer: 19 px (a) Label (b) Body text (c) Caption (d) Menu
8. 8.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 24 px
   Footer: 11 px
   Menu: 12 px
   Label: 10 px
10. 10.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
11. 11.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) sudden loud sounds (d) tiny tap areas
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Label: 16 px
    Caption: 19 px (a) Footer (b) Label (c) Caption
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Menu: 11 px
    Caption: 28 px
    Body text: 20 px
    Hint: 21 px (a) Menu (b) Caption (c) Label (d) Body text
15. 15.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Title: 22 px
    Label: 22 px
17. 17.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
18. 18.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) text that can grow (d) fast-flashing lights
19. 19.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
20. 20.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) nobody (d) only experts
21. 21.♿ 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
22. 22.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 10 px
    Title: 25 px
    Label: 20 px (a) Label (b) Caption (c) Title
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 26 px
    Label: 21 px
    Title: 22 px
    Menu: 12 px (a) Body text (b) Label (c) Menu (d) Title
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Menu: 20 px
    Caption: 13 px
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Caption: 25 px
    Menu: 28 px
    Label: 27 px
    Body text: 14 px (a) Title (b) Caption (c) Body text (d) Menu
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Hint: 17 px
    Label: 12 px
    Menu: 24 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Body text: 10 px
    Footer: 10 px
    Title: 11 px
    Hint: 14 px
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Title: 16 px
    Menu: 20 px
30. 30.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
31. 31.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
33. 33.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
34. 34.Which of these helps everyone use the app? (a) colour as the only clue (b) captions on videos (c) sudden loud sounds (d) tiny tap areas
35. 35.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) colour as the only clue (d) labels on every icon
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Title: 12 px
    Hint: 20 px
    Body text: 23 px
    Footer: 24 px
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Label: 17 px
    Hint: 10 px (a) Hint (b) Label (c) Title
39. 39.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) big touch targets (d) colour as the only clue
40. 40.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) strong colour contrast (d) tiny tap areas

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