App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 272 · 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: “captions on videos” helps everyone use the app. (a) False (b) True
2. 2.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 17 px
   Title: 16 px
   Caption: 15 px
4. 4.Which of these makes the app harder to use? (a) icons with no labels (b) text that can grow (c) labels on every icon (d) strong colour contrast
5. 5.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
6. 6.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 19 px
   Menu: 18 px
   Hint: 9 px
   Caption: 22 px (a) Footer (b) Hint (c) Menu (d) Caption
8. 8.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
9. 9.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
10. 10.Which of these makes the app harder to use? (a) labels on every icon (b) fast-flashing lights (c) strong colour contrast (d) captions on videos
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Title: 16 px
    Hint: 13 px
    Body text: 21 px
12. 12.Which of these makes the app harder to use? (a) captions on videos (b) colour as the only clue (c) text that can grow (d) labels on every icon
13. 13.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) labels on every icon (d) big touch targets
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Hint: 13 px
    Label: 23 px
    Footer: 20 px (a) Hint (b) Footer (c) Body text (d) Label
15. 15.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Menu: 15 px
    Hint: 21 px
    Label: 16 px
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 24 px
    Body text: 13 px
    Label: 27 px
    Hint: 19 px
    Title: 19 px (a) Label (b) Body text (c) Menu (d) Hint
18. 18.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) captions on videos (d) fast-flashing lights
20. 20.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
21. 21.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
22. 22.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) captions on videos (d) colour as the only clue
23. 23.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
24. 24.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Footer: 12 px
    Title: 23 px
    Hint: 15 px
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Footer: 17 px
    Body text: 19 px
    Menu: 13 px
28. 28.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) takes photos (d) makes text tiny
29. 29.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) tiny tap areas (d) text that can grow
30. 30.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) big touch targets (d) colour as the only clue
31. 31.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) strong colour contrast (d) tiny tap areas
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Caption: 15 px
    Hint: 11 px
    Title: 11 px
    Footer: 16 px
33. 33.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) big touch targets (d) fast-flashing lights
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Caption: 28 px
    Label: 28 px (a) Label (b) Caption (c) Footer
36. 36.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
37. 37.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) sudden loud sounds
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Body text: 24 px
    Menu: 14 px
    Label: 11 px
    Footer: 10 px
39. 39.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
40. 40.True or false: “text that can grow” makes the app harder to use. (a) False (b) True

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