App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 307 · 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.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) big touch targets (d) colour as the only clue
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 21 px
   Label: 24 px
   Title: 21 px
   Hint: 12 px
3. 3.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
4. 4.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) tiny tap areas (d) labels on every icon
5. 5.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
6. 6.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
7. 7.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 9 px
   Body text: 22 px
   Hint: 23 px
   Title: 25 px (a) Body text (b) Menu (c) Hint (d) Title
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 16 px
   Body text: 17 px
   Footer: 16 px
   Menu: 10 px
   Caption: 20 px
10. 10.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
11. 11.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a bright colour (d) a long animation
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Hint: 26 px
    Title: 9 px
    Footer: 27 px
    Label: 25 px (a) Hint (b) Footer (c) Title (d) Body text
13. 13.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
14. 14.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
15. 15.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) colour as the only clue
16. 16.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) captions on videos (d) sudden loud sounds
17. 17.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Menu: 10 px
    Caption: 22 px
    Hint: 17 px (a) Body text (b) Hint (c) Caption (d) Menu
19. 19.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
20. 20.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
21. 21.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
23. 23.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
24. 24.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
25. 25.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
26. 26.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
27. 27.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Footer: 19 px
    Caption: 9 px (a) Footer (b) Hint (c) Caption
29. 29.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Caption: 12 px
    Hint: 12 px
    Title: 20 px
31. 31.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) text that can grow
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Caption: 21 px
    Title: 19 px
    Menu: 18 px
    Hint: 12 px
33. 33.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) tiny tap areas (d) icons with no labels
34. 34.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
35. 35.♿ A screen has 7 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: 22 px
    Caption: 17 px
    Title: 12 px
    Footer: 16 px (a) Body text (b) Caption (c) Footer (d) Title
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Label: 23 px
    Caption: 18 px
    Menu: 17 px
38. 38.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Body text: 19 px
    Hint: 19 px
    Menu: 28 px
    Caption: 17 px (a) Menu (b) Hint (c) Footer (d) Body text
40. 40.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) strong colour contrast

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