App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 447 · 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: “captions on videos” helps everyone use the app. (a) True (b) False
2. 2.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
3. 3.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) sudden loud sounds (d) tiny tap areas
4. 4.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 12 px
   Footer: 27 px
   Menu: 19 px
   Body text: 18 px (a) Menu (b) Footer (c) Label (d) Body text
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 17 px
   Title: 21 px
   Menu: 16 px
   Label: 12 px (a) Label (b) Menu (c) Footer (d) Title
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 14 px
   Label: 27 px
   Hint: 22 px (a) Hint (b) Label (c) Footer
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 16 px
   Menu: 10 px
   Footer: 27 px
   Hint: 21 px (a) Caption (b) Menu (c) Footer (d) Hint
9. 9.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) fast-flashing lights
10. 10.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Label: 18 px
    Menu: 26 px
    Title: 20 px (a) Title (b) Menu (c) Label (d) Hint
12. 12.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
13. 13.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) sudden loud sounds (d) text that can grow
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 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
16. 16.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) strong colour contrast (d) icons with no labels
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Caption: 10 px
    Menu: 17 px
    Footer: 19 px (a) Hint (b) Caption (c) Menu (d) Footer
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 18 px
    Body text: 23 px
    Footer: 20 px
19. 19.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
20. 20.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
21. 21.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
22. 22.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) tiny tap areas (d) sudden loud sounds
24. 24.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
25. 25.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) text that can grow (d) big touch targets
26. 26.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) the server (d) fast typists
27. 27.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 22 px
    Label: 17 px
    Hint: 26 px
    Footer: 14 px
    Body text: 21 px (a) Label (b) Footer (c) Caption (d) Hint
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Body text: 16 px
    Footer: 19 px
    Menu: 17 px
    Title: 10 px
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Caption: 18 px
    Label: 12 px (a) Title (b) Caption (c) Label
31. 31.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Label: 17 px
    Caption: 13 px
    Menu: 27 px
    Footer: 16 px (a) Title (b) Label (c) Menu (d) Caption
33. 33.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) sudden loud sounds (d) labels on every icon
34. 34.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
35. 35.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
36. 36.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
37. 37.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) sudden loud sounds (d) tiny tap areas
38. 38.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
39. 39.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) text that can grow (d) strong colour contrast
40. 40.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) colour as the only clue (d) strong colour contrast

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