App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 530 · 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.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
2. 2.Which of these makes the app harder to use? (a) text that can grow (b) tiny tap areas (c) labels on every icon (d) strong colour contrast
3. 3.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a bright colour (d) a long animation
4. 4.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
5. 5.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
6. 6.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) text that can grow (d) strong colour contrast
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 11 px
   Hint: 20 px
   Label: 20 px
   Title: 28 px
   Menu: 23 px (a) Caption (b) Label (c) Title (d) Hint
8. 8.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
9. 9.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
10. 10.♿ A screen has 12 icon buttons. Only 1 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) captions on videos (c) sudden loud sounds (d) strong colour contrast
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Footer: 10 px
    Hint: 17 px (a) Hint (b) Body text (c) Footer
13. 13.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) strong colour contrast (d) tiny tap areas
14. 14.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) tiny tap areas (b) strong colour contrast (c) fast-flashing lights (d) colour as the only clue
16. 16.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Title: 25 px
    Body text: 27 px
    Caption: 12 px (a) Body text (b) Footer (c) Title (d) Caption
18. 18.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) icons with no labels (d) big touch targets
19. 19.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) text that can grow
20. 20.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
21. 21.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) sudden loud sounds (d) big touch targets
22. 22.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 17 px
    Body text: 20 px
    Label: 11 px
    Caption: 21 px
    Hint: 16 px (a) Body text (b) Footer (c) Caption (d) Label
24. 24.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
25. 25.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Body text: 15 px
    Hint: 14 px
27. 27.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
28. 28.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
29. 29.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
30. 30.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
31. 31.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Title: 11 px
    Body text: 20 px
    Label: 24 px
    Menu: 18 px
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Body text: 16 px
    Title: 23 px
    Caption: 19 px
34. 34.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) captions on videos (d) tiny tap areas
35. 35.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
36. 36.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) text that can grow (d) colour as the only clue
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 17 px
    Label: 14 px
    Caption: 22 px (a) Caption (b) Label (c) Footer
38. 38.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) labels on every icon (d) colour as the only clue
39. 39.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Hint: 11 px
    Caption: 17 px (a) Menu (b) Hint (c) Caption

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