App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 817 · 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) fast-flashing lights (b) colour as the only clue (c) sudden loud sounds (d) big touch targets
2. 2.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 11 px
   Title: 12 px
   Menu: 11 px
   Hint: 16 px
4. 4.🔍 Which is the odd one out? (a) colour as the only clue (b) text that can grow (c) strong colour contrast (d) captions on videos
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 21 px
   Title: 18 px
   Caption: 15 px
6. 6.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
7. 7.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
8. 8.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
9. 9.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
10. 10.Which of these helps everyone use the app? (a) text that can grow (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
11. 11.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
12. 12.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
13. 13.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
14. 14.♿ 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
15. 15.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) sudden loud sounds (d) labels on every icon
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Hint: 10 px
    Body text: 10 px
    Label: 14 px
    Caption: 15 px
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Title: 12 px
    Footer: 26 px (a) Footer (b) Menu (c) Title
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Menu: 24 px
    Title: 12 px
    Body text: 14 px
19. 19.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) labels on every icon (d) text that can grow
20. 20.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
21. 21.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
22. 22.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) sudden loud sounds (d) strong colour contrast
23. 23.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only experts (d) only the coder
25. 25.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) captions on videos (d) text that can grow
26. 26.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Caption: 20 px
    Menu: 21 px
28. 28.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) sudden loud sounds (d) big touch targets
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Caption: 12 px
    Footer: 13 px
30. 30.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) tiny tap areas (d) strong colour contrast
31. 31.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) fast-flashing lights (d) colour as the only clue
32. 32.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
33. 33.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) big touch targets (d) fast-flashing lights
34. 34.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Body text: 20 px
    Hint: 15 px
    Caption: 10 px
36. 36.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
37. 37.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
38. 38.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
39. 39.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Footer: 18 px
    Caption: 21 px
    Hint: 25 px (a) Footer (b) Caption (c) Hint (d) Body text

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