App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 254 · 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.Which of these makes the app harder to use? (a) text that can grow (b) colour as the only clue (c) captions on videos (d) labels on every icon
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 13 px
   Hint: 22 px
   Title: 20 px
   Footer: 20 px
   Label: 20 px (a) Hint (b) Menu (c) Title (d) Footer
3. 3.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) sudden loud sounds (d) colour as the only clue
4. 4.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) so anyone can follow (d) to slow them down
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 11 px
   Footer: 18 px
   Label: 18 px
   Hint: 24 px
   Body text: 19 px (a) Menu (b) Hint (c) Footer (d) Label
6. 6.Which of these makes the app harder to use? (a) fast-flashing lights (b) big touch targets (c) labels on every icon (d) strong colour contrast
7. 7.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 20 px
   Label: 22 px
   Footer: 12 px
   Hint: 19 px
   Title: 23 px
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 10 px
   Menu: 14 px
   Title: 23 px
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Label: 18 px
    Menu: 17 px
    Title: 11 px (a) Label (b) Title (c) Hint (d) Menu
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Label: 23 px
    Footer: 14 px
    Title: 25 px (a) Title (b) Hint (c) Footer (d) Label
12. 12.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
13. 13.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
14. 14.Which of these helps everyone use the app? (a) colour as the only clue (b) labels on every icon (c) fast-flashing lights (d) tiny tap areas
15. 15.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Body text: 12 px
    Label: 18 px
    Caption: 22 px
    Menu: 22 px (a) Caption (b) Label (c) Title (d) Body text
17. 17.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) captions on videos (d) tiny tap areas
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Title: 22 px
    Caption: 12 px
    Body text: 10 px
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Footer: 13 px
    Label: 25 px
    Caption: 21 px
    Title: 24 px (a) Label (b) Footer (c) Menu (d) Caption
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Title: 21 px
    Label: 23 px
    Caption: 18 px
    Footer: 14 px (a) Body text (b) Title (c) Footer (d) Label
21. 21.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) tiny tap areas (d) icons with no labels
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Footer: 25 px
    Menu: 20 px
    Title: 20 px
    Hint: 9 px (a) Label (b) Footer (c) Menu (d) Hint
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Footer: 10 px
    Label: 14 px
    Caption: 12 px
    Title: 14 px
24. 24.Which of these makes the app harder to use? (a) tiny tap areas (b) captions on videos (c) strong colour contrast (d) labels on every icon
25. 25.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) fast-flashing lights (d) labels on every icon
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Menu: 16 px
    Title: 19 px
    Caption: 9 px
    Hint: 20 px (a) Caption (b) Title (c) Body text (d) Menu
27. 27.Which of these makes the app harder to use? (a) icons with no labels (b) labels on every icon (c) strong colour contrast (d) big touch targets
28. 28.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) sudden loud sounds (d) captions on videos
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.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) text that can grow (d) strong colour contrast
31. 31.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
32. 32.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a sound (d) a bright colour
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Hint: 9 px
    Caption: 20 px (a) Caption (b) Footer (c) Hint
34. 34.Which of these helps everyone use the app? (a) captions on videos (b) fast-flashing lights (c) icons with no labels (d) tiny tap areas
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Title: 12 px
    Body text: 21 px (a) Label (b) Body text (c) Title
36. 36.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Label: 19 px
    Footer: 13 px
    Body text: 13 px
    Hint: 12 px
38. 38.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) captions on videos (d) labels on every icon
39. 39.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?

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