App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 141 · 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: “tiny tap areas” helps everyone use the app. (a) True (b) False
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 10 px
   Menu: 16 px
   Caption: 21 px
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 11 px
   Label: 17 px
   Footer: 14 px
   Title: 13 px
   Hint: 15 px
4. 4.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 10 px
   Footer: 18 px
   Hint: 24 px
   Caption: 21 px (a) Hint (b) Caption (c) Footer (d) Title
6. 6.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
7. 7.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 11 px
   Caption: 25 px
   Label: 25 px (a) Caption (b) Menu (c) Label
9. 9.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
10. 10.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
11. 11.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) labels on every icon (d) strong colour contrast
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Title: 9 px
    Hint: 22 px (a) Caption (b) Hint (c) Title
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) colour as the only clue (d) big touch targets
14. 14.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
15. 15.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights
16. 16.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
17. 17.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
18. 18.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
19. 19.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
20. 20.Which of these helps everyone use the app? (a) fast-flashing lights (b) strong colour contrast (c) colour as the only clue (d) icons with no labels
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 26 px
    Caption: 9 px
    Title: 27 px (a) Title (b) Caption (c) Menu
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) colour as the only clue (d) text that can grow
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Caption: 22 px
    Label: 26 px
    Body text: 28 px (a) Label (b) Caption (c) Body text (d) Menu
24. 24.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
25. 25.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) captions on videos (d) icons with no labels
26. 26.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
27. 27.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
28. 28.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) big touch targets
30. 30.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) strong colour contrast (d) captions on videos
31. 31.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 28 px
    Title: 10 px
    Label: 16 px (a) Menu (b) Label (c) Title
33. 33.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
34. 34.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Hint: 19 px
    Menu: 12 px (a) Hint (b) Menu (c) Label
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Label: 26 px
    Body text: 23 px
    Title: 25 px
    Hint: 27 px (a) Caption (b) Label (c) Body text (d) Title
37. 37.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
38. 38.Which of these helps everyone use the app? (a) text that can grow (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Body text: 21 px
    Title: 12 px
40. 40.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?

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