App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 253 · 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) captions on videos (b) labels on every icon (c) strong colour contrast (d) fast-flashing lights
2. 2.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
3. 3.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
4. 4.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) captions on videos (d) sudden loud sounds
5. 5.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) big touch targets (d) colour as the only clue
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 9 px
   Title: 16 px
   Caption: 24 px
   Hint: 27 px
   Label: 18 px (a) Title (b) Caption (c) Menu (d) Hint
7. 7.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 13 px
   Footer: 12 px
   Hint: 13 px
9. 9.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Title: 18 px
    Hint: 23 px
    Menu: 10 px
    Label: 21 px (a) Footer (b) Hint (c) Title (d) Menu
11. 11.Which of these helps everyone use the app? (a) labels on every icon (b) colour as the only clue (c) icons with no labels (d) tiny tap areas
12. 12.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
13. 13.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) colour as the only clue (d) big touch targets
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 22 px
    Hint: 9 px
    Caption: 16 px
    Body text: 26 px
    Menu: 27 px (a) Caption (b) Body text (c) Hint (d) Footer
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 22 px
    Label: 14 px
    Caption: 15 px
    Body text: 14 px
    Title: 22 px
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 25 px
    Title: 16 px
    Footer: 9 px (a) Hint (b) Title (c) Footer
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Label: 13 px
    Footer: 14 px
    Title: 21 px
18. 18.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
19. 19.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a long animation (d) a bright colour
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 16 px
    Title: 14 px
    Label: 11 px
21. 21.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) labels on every icon (d) sudden loud sounds
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Label: 10 px
    Caption: 16 px
    Footer: 18 px (a) Caption (b) Hint (c) Footer (d) Label
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Title: 13 px
    Footer: 23 px
    Hint: 19 px
24. 24.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
25. 25.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Title: 20 px
    Body text: 28 px (a) Body text (b) Title (c) Caption
28. 28.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (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?
    Menu: 20 px
    Label: 17 px
    Footer: 13 px (a) Label (b) Menu (c) Footer
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 24 px
    Body text: 18 px
    Title: 24 px
    Footer: 15 px
31. 31.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Caption: 12 px
    Footer: 16 px
    Body text: 20 px
33. 33.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 17 px
    Caption: 14 px
    Label: 19 px
    Body text: 14 px
    Hint: 11 px
35. 35.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) strong colour contrast (d) labels on every icon
36. 36.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
37. 37.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) labels on every icon (d) captions on videos
39. 39.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) labels on every icon (d) tiny tap areas
40. 40.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone

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