App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 227 · 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.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 17 px
   Hint: 11 px
   Caption: 18 px (a) Caption (b) Hint (c) Label
3. 3.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
4. 4.♿ A screen has 8 icon buttons. Only 5 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?
   Title: 23 px
   Hint: 23 px
   Menu: 18 px
   Label: 19 px
   Caption: 9 px (a) Hint (b) Title (c) Caption (d) Menu
6. 6.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
7. 7.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
8. 8.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
9. 9.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) big touch targets (d) tiny tap areas
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 22 px
    Hint: 18 px
    Body text: 23 px
    Label: 23 px
    Footer: 13 px (a) Hint (b) Footer (c) Title (d) Body text
12. 12.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
13. 13.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) labels on every icon (d) colour as the only clue
14. 14.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
15. 15.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) to hide the sound (d) so anyone can follow
16. 16.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
17. 17.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
18. 18.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) big touch targets (d) colour as the only clue
19. 19.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
20. 20.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
21. 21.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
22. 22.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) big touch targets (d) tiny tap areas
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Menu: 13 px
    Body text: 24 px
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Body text: 28 px
    Title: 23 px (a) Label (b) Title (c) Body text
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Label: 21 px
    Footer: 24 px
    Body text: 28 px (a) Label (b) Title (c) Footer (d) Body text
26. 26.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
27. 27.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) colour as the only clue (d) fast-flashing lights
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Label: 23 px
    Title: 10 px
    Hint: 18 px (a) Body text (b) Label (c) Hint (d) Title
29. 29.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
30. 30.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) text that can grow (d) colour as the only clue
32. 32.🔍 Which is the odd one out? (a) tiny tap areas (b) strong colour contrast (c) sudden loud sounds (d) icons with no labels
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Body text: 22 px
    Title: 13 px
    Label: 22 px
    Footer: 11 px
34. 34.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
35. 35.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Body text: 17 px
    Label: 19 px
    Footer: 19 px
37. 37.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) captions on videos (d) big touch targets
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Hint: 25 px
    Caption: 19 px
    Body text: 27 px
    Footer: 20 px (a) Label (b) Hint (c) Caption (d) Body text
39. 39.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
40. 40.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) labels on every icon (d) fast-flashing lights

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