App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 329 · 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.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 27 px
   Body text: 10 px
   Caption: 19 px
   Menu: 26 px
   Label: 20 px (a) Caption (b) Title (c) Menu (d) Body text
3. 3.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a bright colour (d) a long animation
4. 4.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
5. 5.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 24 px
   Hint: 13 px
   Footer: 21 px (a) Footer (b) Hint (c) Caption
8. 8.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 25 px
   Body text: 26 px
   Caption: 12 px
   Hint: 26 px
   Footer: 21 px (a) Hint (b) Title (c) Body text (d) Caption
10. 10.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) sudden loud sounds (d) labels on every icon
11. 11.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) colour as the only clue (d) sudden loud sounds
12. 12.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
13. 13.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
14. 14.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Hint: 17 px
    Body text: 25 px
    Caption: 17 px (a) Hint (b) Title (c) Caption (d) Body text
16. 16.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
17. 17.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 22 px
    Body text: 12 px
    Footer: 19 px (a) Caption (b) Body text (c) Footer
19. 19.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
20. 20.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) captions on videos (d) colour as the only clue
21. 21.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) fast-flashing lights (d) text that can grow
22. 22.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Hint: 19 px
    Body text: 11 px
    Menu: 10 px
24. 24.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Label: 11 px
    Footer: 23 px
    Caption: 17 px
26. 26.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Title: 27 px
    Body text: 26 px
    Hint: 18 px (a) Body text (b) Menu (c) Hint (d) Title
28. 28.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Body text: 10 px
    Title: 17 px (a) Title (b) Body text (c) Hint
30. 30.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) captions on videos
31. 31.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) captions on videos (d) sudden loud sounds
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Menu: 10 px
    Caption: 20 px
33. 33.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) icons with no labels (d) text that can grow
34. 34.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) strong colour contrast (d) colour as the only clue
35. 35.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) sudden loud sounds (d) fast-flashing lights
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Caption: 26 px
    Hint: 22 px
    Label: 9 px (a) Label (b) Caption (c) Title (d) Hint
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 21 px
    Caption: 28 px
    Body text: 9 px
    Menu: 17 px (a) Label (b) Caption (c) Menu (d) Body text
38. 38.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
39. 39.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to add colour (d) to slow them down

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