App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 97 · 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?
   Caption: 23 px
   Hint: 10 px
   Title: 21 px
   Body text: 15 px
   Menu: 13 px
2. 2.Which of these helps everyone use the app? (a) sudden loud sounds (b) captions on videos (c) fast-flashing lights (d) icons with no labels
3. 3.Which of these makes the app harder to use? (a) fast-flashing lights (b) strong colour contrast (c) captions on videos (d) labels on every icon
4. 4.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 12 px
   Body text: 22 px
   Hint: 19 px
6. 6.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
7. 7.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) the battery (d) colour-blind users
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 12 px
   Caption: 28 px
   Body text: 20 px
   Hint: 28 px
   Label: 23 px (a) Footer (b) Caption (c) Body text (d) Hint
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 18 px
   Title: 19 px
   Hint: 11 px
   Menu: 22 px (a) Title (b) Menu (c) Caption (d) Hint
10. 10.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
11. 11.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Title: 13 px
    Hint: 24 px
    Caption: 16 px
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Title: 23 px
    Caption: 16 px
    Body text: 18 px
    Hint: 21 px
14. 14.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) labels on every icon (d) tiny tap areas
15. 15.Which of these makes the app harder to use? (a) icons with no labels (b) big touch targets (c) labels on every icon (d) text that can grow
16. 16.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) fast-flashing lights (d) sudden loud sounds
17. 17.♿ A screen has 11 icon buttons. Only 3 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?
    Title: 16 px
    Hint: 9 px
    Label: 22 px
    Caption: 22 px
    Footer: 23 px (a) Caption (b) Hint (c) Title (d) Label
19. 19.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) icons with no labels (d) text that can grow
20. 20.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
21. 21.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) text that can grow (d) colour as the only clue
23. 23.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
24. 24.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
25. 25.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) sudden loud sounds (d) colour as the only clue
26. 26.Which of these makes the app harder to use? (a) tiny tap areas (b) labels on every icon (c) strong colour contrast (d) text that can grow
27. 27.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) captions on videos (d) sudden loud sounds
28. 28.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
29. 29.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Hint: 14 px
    Title: 19 px (a) Hint (b) Label (c) Title
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Body text: 9 px
    Menu: 23 px (a) Menu (b) Body text (c) Caption
32. 32.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
33. 33.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) big touch targets
35. 35.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) colour as the only clue (d) strong colour contrast
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 15 px
    Title: 11 px
    Hint: 13 px
    Menu: 11 px
    Body text: 22 px
37. 37.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) big touch targets (d) tiny tap areas
38. 38.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a text label (d) a bright colour
39. 39.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
40. 40.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder

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