App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 53 · 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.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to add colour (d) to hide the sound
2. 2.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) nobody (d) only experts
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 24 px
   Caption: 20 px
   Label: 11 px
   Hint: 18 px
   Body text: 28 px (a) Caption (b) Label (c) Hint (d) Menu
4. 4.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) tiny tap areas (d) icons with no labels
5. 5.Which of these makes the app harder to use? (a) captions on videos (b) icons with no labels (c) strong colour contrast (d) big touch targets
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 20 px
   Caption: 22 px
   Body text: 12 px (a) Caption (b) Menu (c) Body text
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 19 px
   Body text: 19 px
   Title: 13 px
   Menu: 19 px (a) Body text (b) Menu (c) Title (d) Hint
8. 8.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
9. 9.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Label: 28 px
    Footer: 23 px
    Menu: 22 px
    Hint: 20 px (a) Footer (b) Caption (c) Label (d) Menu
11. 11.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
12. 12.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) sudden loud sounds
13. 13.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Hint: 13 px
    Footer: 18 px
    Body text: 10 px
15. 15.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
17. 17.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) plays music (d) takes photos
18. 18.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) sudden loud sounds (d) colour as the only clue
19. 19.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
20. 20.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
21. 21.Which of these helps everyone use the app? (a) big touch targets (b) tiny tap areas (c) fast-flashing lights (d) icons with no labels
22. 22.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
23. 23.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
24. 24.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
25. 25.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) fast-flashing lights (d) colour as the only clue
26. 26.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Label: 20 px
    Footer: 12 px
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Caption: 22 px
    Body text: 12 px (a) Body text (b) Caption (c) Hint
29. 29.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
30. 30.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
31. 31.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) fast-flashing lights
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Body text: 14 px
    Menu: 19 px (a) Body text (b) Menu (c) Footer
33. 33.Which of these helps everyone use the app? (a) labels on every icon (b) fast-flashing lights (c) icons with no labels (d) sudden loud sounds
34. 34.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) tiny tap areas (d) labels on every icon
35. 35.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
36. 36.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) text that can grow
38. 38.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Label: 13 px
    Body text: 24 px (a) Menu (b) Label (c) Body text
40. 40.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) labels on every icon (d) colour as the only clue

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