App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 459 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 18 px
   Body text: 13 px
   Footer: 17 px
   Label: 19 px
   Menu: 21 px (a) Label (b) Footer (c) Title (d) Body text
2. 2.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 12 px
   Menu: 12 px
   Hint: 22 px
   Caption: 14 px
   Label: 24 px
4. 4.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
5. 5.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
6. 6.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) fast-flashing lights (d) big touch targets
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 17 px
   Caption: 21 px
   Footer: 28 px
   Title: 17 px
   Label: 9 px (a) Menu (b) Caption (c) Footer (d) Label
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 18 px
   Title: 13 px
   Label: 19 px
   Menu: 17 px
9. 9.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
10. 10.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) strong colour contrast (d) sudden loud sounds
12. 12.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) sudden loud sounds (d) strong colour contrast
14. 14.Which of these helps everyone use the app? (a) text that can grow (b) sudden loud sounds (c) fast-flashing lights (d) icons with no labels
15. 15.Which of these makes the app harder to use? (a) captions on videos (b) tiny tap areas (c) strong colour contrast (d) text that can grow
16. 16.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
17. 17.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) labels on every icon
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Title: 17 px
    Hint: 28 px
    Footer: 23 px
    Body text: 18 px (a) Footer (b) Label (c) Hint (d) Title
19. 19.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Title: 11 px
    Caption: 10 px
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Title: 23 px
    Body text: 17 px
    Menu: 12 px (a) Body text (b) Title (c) Label (d) Menu
22. 22.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) big touch targets (d) text that can grow
23. 23.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
24. 24.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Footer: 13 px
    Label: 18 px
    Menu: 22 px
    Caption: 19 px
26. 26.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Body text: 12 px
    Hint: 16 px
    Label: 20 px (a) Menu (b) Body text (c) Hint (d) Label
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Hint: 19 px
    Menu: 26 px
    Footer: 18 px (a) Hint (b) Menu (c) Footer (d) Title
29. 29.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
30. 30.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) strong colour contrast (d) tiny tap areas
31. 31.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 14 px
    Label: 23 px
    Hint: 27 px
    Menu: 22 px (a) Hint (b) Caption (c) Menu (d) Label
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 17 px
    Title: 13 px
    Hint: 19 px
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Footer: 28 px
    Hint: 11 px
    Menu: 25 px (a) Footer (b) Caption (c) Menu (d) Hint
35. 35.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
37. 37.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) captions on videos (d) fast-flashing lights
38. 38.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
39. 39.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) sudden loud sounds (d) text that can grow
40. 40.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) labels on every icon (d) icons with no labels

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