App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 854 · 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?
   Title: 13 px
   Hint: 25 px
   Body text: 17 px
   Menu: 24 px (a) Menu (b) Title (c) Hint (d) Body text
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 14 px
   Footer: 16 px
   Caption: 21 px
   Title: 28 px (a) Footer (b) Caption (c) Hint (d) Title
3. 3.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
4. 4.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) text that can grow (d) icons with no labels
5. 5.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
6. 6.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
7. 7.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
8. 8.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 15 px
   Label: 16 px
   Body text: 15 px
10. 10.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
11. 11.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) tiny tap areas (d) text that can grow
12. 12.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
13. 13.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) so anyone can follow (d) to hide the sound
15. 15.♿ A screen has 7 icon buttons. Only 4 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?
    Title: 10 px
    Footer: 18 px
    Hint: 13 px
17. 17.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
18. 18.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) big touch targets (d) icons with no labels
19. 19.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Label: 13 px
    Body text: 22 px (a) Menu (b) Body text (c) Label
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Caption: 16 px
    Label: 18 px
    Title: 23 px
22. 22.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) big touch targets (d) strong colour contrast
23. 23.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
24. 24.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
25. 25.Which of these makes the app harder to use? (a) sudden loud sounds (b) big touch targets (c) labels on every icon (d) text that can grow
26. 26.Which of these makes the app harder to use? (a) fast-flashing lights (b) text that can grow (c) labels on every icon (d) big touch targets
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Title: 22 px
    Hint: 19 px
    Menu: 14 px (a) Title (b) Menu (c) Body text (d) Hint
28. 28.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 14 px
    Footer: 20 px
    Label: 25 px
    Menu: 27 px
    Title: 16 px (a) Footer (b) Menu (c) Caption (d) Label
30. 30.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
31. 31.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
32. 32.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) captions on videos (d) colour as the only clue
33. 33.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) labels on every icon (d) sudden loud sounds
34. 34.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
35. 35.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Menu: 27 px
    Title: 20 px
    Body text: 17 px
    Footer: 12 px (a) Title (b) Menu (c) Footer (d) Label
38. 38.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) strong colour contrast (d) fast-flashing lights
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Hint: 21 px
    Label: 20 px
    Body text: 10 px
    Caption: 11 px
40. 40.True or false: “captions on videos” makes the app harder to use. (a) True (b) False

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