App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 609 · 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.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
2. 2.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 9 px
   Body text: 16 px
   Menu: 24 px (a) Caption (b) Body text (c) Menu
4. 4.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) strong colour contrast (d) icons with no labels
5. 5.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) big touch targets (d) colour as the only clue
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 18 px
   Caption: 19 px
   Label: 10 px
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 13 px
   Caption: 22 px
   Label: 16 px
   Hint: 20 px
   Body text: 24 px
8. 8.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
9. 9.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 11 px
    Label: 20 px
    Title: 22 px
    Footer: 18 px
    Body text: 25 px (a) Title (b) Label (c) Hint (d) Footer
11. 11.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) tiny tap areas (d) icons with no labels
12. 12.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) icons with no labels (d) sudden loud sounds
13. 13.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a long animation (d) a sound
14. 14.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
15. 15.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
17. 17.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) captions on videos (d) big touch targets
18. 18.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
19. 19.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) fast-flashing lights (d) big touch targets
21. 21.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) captions on videos (d) fast-flashing lights
22. 22.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
23. 23.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
24. 24.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
25. 25.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) labels on every icon (d) captions on videos
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Menu: 21 px
    Caption: 11 px
    Title: 14 px
27. 27.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 26 px
    Caption: 9 px
    Menu: 17 px
    Label: 17 px (a) Label (b) Body text (c) Menu (d) Caption
29. 29.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Title: 20 px
    Hint: 28 px (a) Title (b) Footer (c) Hint
32. 32.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Body text: 15 px
    Hint: 12 px
34. 34.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) text that can grow (d) fast-flashing lights
35. 35.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
36. 36.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) big touch targets (d) sudden loud sounds
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Hint: 16 px
    Title: 10 px (a) Hint (b) Title (c) Menu
39. 39.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True

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