App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 848 · 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. How many texts on this screen are too small?
   Menu: 22 px
   Title: 23 px
   Label: 10 px
   Body text: 12 px
2. 2.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
4. 4.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
5. 5.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) fast-flashing lights (d) strong colour contrast
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 23 px
   Hint: 15 px
   Caption: 12 px
   Label: 18 px
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 10 px
   Caption: 18 px
   Hint: 15 px
8. 8.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
9. 9.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) colour as the only clue (d) sudden loud sounds
10. 10.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
11. 11.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Footer: 16 px
    Body text: 18 px
    Hint: 25 px
    Caption: 10 px (a) Caption (b) Footer (c) Body text (d) Label
13. 13.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
14. 14.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
15. 15.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
16. 16.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) colour as the only clue (d) captions on videos
17. 17.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Footer: 27 px
    Hint: 10 px (a) Footer (b) Hint (c) Body text
19. 19.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
20. 20.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
21. 21.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Label: 16 px
    Caption: 23 px
    Hint: 21 px
    Menu: 10 px (a) Label (b) Menu (c) Caption (d) Title
23. 23.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
24. 24.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
25. 25.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
27. 27.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
28. 28.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
29. 29.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
30. 30.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Body text: 14 px
    Menu: 17 px
32. 32.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) fast-flashing lights (d) labels on every icon
33. 33.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Menu: 27 px
    Body text: 14 px
    Footer: 18 px (a) Title (b) Menu (c) Body text (d) Footer
35. 35.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) big touch targets (d) fast-flashing lights
36. 36.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Menu: 13 px
    Body text: 22 px
    Footer: 26 px
    Hint: 19 px (a) Title (b) Body text (c) Footer (d) Menu
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 25 px
    Title: 16 px
    Footer: 10 px (a) Hint (b) Footer (c) Title
39. 39.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) labels on every icon (d) fast-flashing lights
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 21 px
    Hint: 10 px
    Title: 26 px
    Caption: 23 px
    Body text: 18 px (a) Caption (b) Hint (c) Label (d) Title

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