App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 324 · 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 slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
2. 2.Which of these helps everyone use the app? (a) tiny tap areas (b) text that can grow (c) fast-flashing lights (d) sudden loud sounds
3. 3.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 22 px
   Label: 13 px
   Caption: 24 px (a) Footer (b) Label (c) Caption
5. 5.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) big touch targets (d) strong colour contrast
6. 6.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) fast-flashing lights (d) tiny tap areas
8. 8.♿ A screen has 12 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Caption: 22 px
    Footer: 17 px (a) Body text (b) Footer (c) Caption
11. 11.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Footer: 11 px
    Label: 24 px
13. 13.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 17 px
    Footer: 20 px
    Label: 24 px
16. 16.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) labels on every icon
17. 17.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) labels on every icon
18. 18.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
19. 19.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
20. 20.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
21. 21.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Hint: 14 px
    Menu: 23 px
    Title: 13 px
    Body text: 15 px
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 14 px
    Title: 22 px
    Body text: 23 px
    Label: 14 px
    Footer: 13 px
24. 24.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Label: 23 px
    Title: 17 px
    Hint: 22 px
    Caption: 15 px
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 22 px
    Title: 10 px
    Label: 25 px (a) Footer (b) Label (c) Title
27. 27.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) captions on videos (d) strong colour contrast
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 21 px
    Caption: 17 px
    Menu: 10 px (a) Title (b) Menu (c) Caption
29. 29.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
30. 30.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
31. 31.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
32. 32.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
33. 33.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
35. 35.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) tiny tap areas (d) big touch targets
36. 36.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Hint: 15 px
    Footer: 20 px
    Body text: 14 px
38. 38.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 22 px
    Menu: 18 px
    Hint: 21 px
    Label: 22 px
    Caption: 13 px (a) Title (b) Menu (c) Caption (d) Hint
40. 40.True or false: “captions on videos” makes the app harder to use. (a) False (b) True

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