App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 350 · 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 should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a bright colour (d) a text label
2. 2.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
3. 3.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
4. 4.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
5. 5.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
6. 6.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
7. 7.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) tiny tap areas (d) strong colour contrast
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 21 px
   Caption: 24 px
   Title: 9 px
   Menu: 20 px (a) Title (b) Menu (c) Body text (d) Caption
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 13 px
   Menu: 21 px
   Body text: 22 px
   Caption: 20 px
   Hint: 23 px
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Menu: 26 px
    Body text: 16 px (a) Menu (b) Label (c) Body text
11. 11.Which of these helps everyone use the app? (a) fast-flashing lights (b) labels on every icon (c) tiny tap areas (d) colour as the only clue
12. 12.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) strong colour contrast (d) fast-flashing lights
14. 14.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) sudden loud sounds (d) text that can grow
15. 15.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
16. 16.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) tiny tap areas (d) captions on videos
17. 17.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
18. 18.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) strong colour contrast
19. 19.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
20. 20.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
21. 21.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) sudden loud sounds (d) big touch targets
23. 23.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
24. 24.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) text that can grow (d) captions on videos
25. 25.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) only the coder (d) nobody
26. 26.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
27. 27.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Caption: 20 px
    Menu: 18 px
    Footer: 20 px
    Title: 20 px
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Hint: 25 px
    Footer: 18 px
    Menu: 28 px (a) Body text (b) Hint (c) Footer (d) Menu
30. 30.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
31. 31.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
32. 32.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Title: 23 px
    Menu: 23 px
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Menu: 17 px
    Caption: 14 px (a) Menu (b) Caption (c) Footer
35. 35.♿ A screen has 8 icon buttons. Only 2 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. Which text on this screen is too small?
    Body text: 20 px
    Label: 21 px
    Caption: 25 px
    Footer: 12 px (a) Label (b) Caption (c) Body text (d) Footer
37. 37.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) big touch targets
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Label: 19 px
    Hint: 26 px (a) Hint (b) Title (c) Label
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Body text: 13 px
    Hint: 18 px
    Menu: 18 px (a) Hint (b) Body text (c) Menu (d) Caption
40. 40.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone

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