App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 863 · 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. Which text on this screen is too small?
   Caption: 21 px
   Hint: 18 px
   Body text: 10 px
   Menu: 28 px
   Title: 19 px (a) Body text (b) Menu (c) Hint (d) Caption
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 22 px
   Hint: 10 px
   Body text: 23 px (a) Title (b) Hint (c) Body text
3. 3.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) fast-flashing lights (d) tiny tap areas
4. 4.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) colour as the only clue (d) text that can grow
5. 5.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) sudden loud sounds
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 10 px
   Hint: 23 px
   Caption: 20 px
7. 7.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
8. 8.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
9. 9.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
10. 10.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
11. 11.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
12. 12.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Hint: 18 px
    Footer: 22 px
14. 14.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) big touch targets (d) icons with no labels
15. 15.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
16. 16.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
17. 17.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) colour as the only clue (d) fast-flashing lights
18. 18.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
19. 19.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
20. 20.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
21. 21.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) captions on videos (d) fast-flashing lights
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Body text: 17 px
    Caption: 20 px
    Menu: 12 px
    Footer: 10 px
23. 23.♿ 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
24. 24.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 18 px
    Menu: 24 px
    Hint: 21 px
26. 26.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Body text: 15 px
    Caption: 11 px
    Menu: 12 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Footer: 22 px
    Caption: 19 px
29. 29.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
30. 30.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
31. 31.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) strong colour contrast (d) icons with no labels
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Hint: 22 px
    Menu: 20 px
    Footer: 10 px
    Body text: 16 px (a) Footer (b) Menu (c) Hint (d) Title
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Hint: 15 px
    Label: 15 px
    Footer: 22 px
    Title: 20 px
34. 34.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Footer: 24 px
    Menu: 10 px
    Body text: 22 px (a) Footer (b) Title (c) Body text (d) Menu
36. 36.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Label: 10 px
    Footer: 22 px
    Body text: 21 px (a) Footer (b) Body text (c) Label (d) Title
38. 38.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
39. 39.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) captions on videos (d) sudden loud sounds
40. 40.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) tiny tap areas (d) labels on every icon

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