App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 629 · 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) strong colour contrast (b) colour as the only clue (c) big touch targets (d) labels on every icon
2. 2.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
3. 3.🔍 Which is the odd one out? (a) colour as the only clue (b) text that can grow (c) sudden loud sounds (d) icons with no labels
4. 4.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 18 px
   Footer: 9 px
   Body text: 22 px (a) Footer (b) Menu (c) Body text
6. 6.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
7. 7.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) big touch targets (d) fast-flashing lights
8. 8.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 15 px
   Title: 20 px
   Body text: 21 px
   Footer: 19 px
   Caption: 20 px
10. 10.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
11. 11.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Footer: 18 px
    Title: 18 px
13. 13.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) big touch targets (d) sudden loud sounds
14. 14.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) big touch targets
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Menu: 22 px
    Caption: 26 px
    Body text: 11 px (a) Caption (b) Menu (c) Hint (d) Body text
16. 16.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
17. 17.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) big touch targets
18. 18.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) sudden loud sounds
19. 19.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) strong colour contrast
20. 20.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) colour-blind users (d) fast typists
21. 21.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
22. 22.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) text that can grow (d) sudden loud sounds
23. 23.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
24. 24.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
25. 25.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Caption: 23 px
    Title: 22 px
27. 27.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
28. 28.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) labels on every icon
29. 29.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
30. 30.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Title: 16 px
    Menu: 22 px
    Label: 28 px
    Caption: 21 px (a) Footer (b) Menu (c) Label (d) Title
32. 32.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) strong colour contrast
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Menu: 11 px
    Footer: 19 px
    Body text: 16 px
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Title: 28 px
    Menu: 16 px
    Hint: 12 px
    Caption: 19 px (a) Footer (b) Hint (c) Menu (d) Title
35. 35.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Label: 9 px
    Menu: 27 px
    Title: 16 px (a) Title (b) Menu (c) Label (d) Footer
37. 37.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
38. 38.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) tiny tap areas (d) captions on videos
39. 39.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
40. 40.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?

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