App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 145 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 18 px
   Menu: 28 px
   Caption: 16 px
   Label: 16 px
   Body text: 10 px (a) Body text (b) Hint (c) Caption (d) Menu
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 19 px
   Hint: 16 px
   Title: 10 px
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 17 px
   Body text: 13 px
   Footer: 10 px
4. 4.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
5. 5.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
7. 7.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
8. 8.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) big touch targets
9. 9.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
10. 10.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Label: 23 px
    Hint: 21 px
12. 12.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) captions on videos (d) colour as the only clue
13. 13.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Label: 14 px
    Footer: 17 px (a) Footer (b) Label (c) Body text
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Hint: 11 px
    Label: 10 px
16. 16.🔍 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
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Title: 23 px
    Label: 23 px
18. 18.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) sudden loud sounds
20. 20.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
21. 21.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) tiny tap areas
22. 22.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
23. 23.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
24. 24.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
25. 25.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) icons with no labels (d) labels on every icon
26. 26.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) strong colour contrast
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Label: 25 px
    Menu: 28 px
    Body text: 28 px
    Title: 16 px (a) Menu (b) Hint (c) Body text (d) Label
28. 28.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
29. 29.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Hint: 13 px
    Caption: 10 px
    Label: 14 px
31. 31.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
32. 32.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
33. 33.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) captions on videos (d) fast-flashing lights
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 14 px
    Footer: 25 px
    Hint: 17 px (a) Hint (b) Footer (c) Title
35. 35.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Label: 18 px
    Caption: 10 px
    Body text: 18 px (a) Body text (b) Label (c) Caption (d) Hint
37. 37.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
38. 38.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) big touch targets (d) icons with no labels
39. 39.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) captions on videos (d) text that can grow
40. 40.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True

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