App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 864 · 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.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 16 px
   Footer: 18 px
   Hint: 19 px
   Label: 26 px
   Menu: 10 px (a) Title (b) Footer (c) Hint (d) Menu
3. 3.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) tiny tap areas
4. 4.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
5. 5.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
6. 6.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) big touch targets (d) colour as the only clue
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 22 px
   Footer: 24 px
   Hint: 22 px
   Title: 11 px (a) Hint (b) Title (c) Footer (d) Label
8. 8.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 12 px
   Footer: 16 px
   Hint: 17 px
   Body text: 21 px
   Caption: 19 px
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Hint: 14 px
    Caption: 16 px
    Footer: 22 px (a) Caption (b) Footer (c) Hint (d) Body text
11. 11.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
12. 12.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
13. 13.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
14. 14.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) text that can grow (d) fast-flashing lights
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Menu: 16 px
    Body text: 24 px
    Caption: 24 px
16. 16.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) big touch targets (d) tiny tap areas
17. 17.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
18. 18.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
20. 20.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
21. 21.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
22. 22.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
23. 23.Which of these helps everyone use the app? (a) text that can grow (b) sudden loud sounds (c) tiny tap areas (d) icons with no labels
24. 24.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) plays music (d) makes text tiny
25. 25.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) captions on videos (d) colour as the only clue
26. 26.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
27. 27.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) captions on videos
28. 28.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
29. 29.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Footer: 28 px
    Title: 10 px (a) Title (b) Label (c) Footer
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Footer: 20 px
    Menu: 16 px
    Caption: 21 px
    Label: 11 px
32. 32.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) text that can grow
34. 34.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) big touch targets (d) tiny tap areas
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 15 px
    Caption: 17 px
    Label: 14 px
36. 36.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
37. 37.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) strong colour contrast (d) fast-flashing lights
38. 38.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Body text: 10 px
    Label: 23 px
    Footer: 22 px
    Caption: 28 px (a) Label (b) Footer (c) Menu (d) Body text
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Footer: 12 px
    Menu: 21 px
    Label: 20 px
    Body text: 27 px (a) Footer (b) Title (c) Label (d) Menu

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