App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 624 · 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?
   Hint: 23 px
   Label: 18 px
   Footer: 19 px
   Caption: 10 px
   Body text: 25 px (a) Footer (b) Hint (c) Label (d) Caption
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 16 px
   Body text: 19 px
   Footer: 10 px
3. 3.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
4. 4.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
5. 5.Which of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) sudden loud sounds
6. 6.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
7. 7.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 19 px
   Caption: 22 px
   Menu: 16 px
   Footer: 10 px
   Hint: 22 px
9. 9.♿ 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
10. 10.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
12. 12.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
13. 13.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 11 px
    Hint: 28 px
    Title: 17 px
    Caption: 23 px
    Menu: 19 px (a) Caption (b) Footer (c) Title (d) Hint
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Hint: 25 px
    Label: 22 px
    Body text: 17 px (a) Body text (b) Label (c) Caption (d) Hint
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Body text: 20 px
    Footer: 23 px
    Title: 20 px
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Footer: 17 px
    Menu: 17 px
    Caption: 22 px
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Body text: 21 px
    Caption: 20 px
    Footer: 19 px
    Hint: 9 px (a) Label (b) Hint (c) Caption (d) Body text
19. 19.Which of these helps everyone use the app? (a) labels on every icon (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
20. 20.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
21. 21.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
22. 22.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
23. 23.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) big touch targets
24. 24.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) nobody (d) only experts
25. 25.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) big touch targets
26. 26.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) sudden loud sounds (d) colour as the only clue
27. 27.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) sudden loud sounds (d) text that can grow
28. 28.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
29. 29.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) labels on every icon (d) fast-flashing lights
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Hint: 11 px
    Body text: 14 px
31. 31.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) tiny tap areas (d) big touch targets
32. 32.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) text that can grow (d) captions on videos
33. 33.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
35. 35.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) text that can grow (d) labels on every icon
36. 36.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) sudden loud sounds (d) icons with no labels
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Caption: 24 px
    Title: 15 px
    Label: 12 px
38. 38.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) tiny tap areas (d) captions on videos
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Title: 28 px
    Menu: 20 px (a) Hint (b) Title (c) Menu
40. 40.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) colour as the only clue (d) fast-flashing lights

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