App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 202 · 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.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
2. 2.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
3. 3.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) captions on videos (d) fast-flashing lights
4. 4.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) text that can grow (d) sudden loud sounds
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 24 px
   Footer: 25 px
   Caption: 14 px (a) Body text (b) Caption (c) Footer
6. 6.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) colour as the only clue (d) labels on every icon
7. 7.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
8. 8.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Label: 10 px
    Body text: 10 px
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Menu: 22 px
    Title: 23 px
12. 12.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
13. 13.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
15. 15.Which of these helps everyone use the app? (a) labels on every icon (b) icons with no labels (c) sudden loud sounds (d) tiny tap areas
16. 16.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Label: 19 px
    Caption: 13 px
    Menu: 24 px
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Body text: 15 px
    Hint: 21 px
    Label: 24 px
    Menu: 20 px
19. 19.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
20. 20.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
21. 21.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) colour as the only clue (d) big touch targets
22. 22.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
23. 23.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Title: 23 px
    Footer: 23 px
    Body text: 26 px (a) Footer (b) Title (c) Caption (d) Body text
25. 25.♿ 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
26. 26.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
27. 27.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 22 px
    Label: 14 px
    Title: 28 px
    Caption: 22 px
    Body text: 28 px (a) Label (b) Caption (c) Title (d) Footer
29. 29.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (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?
    Hint: 10 px
    Body text: 28 px
    Label: 20 px (a) Body text (b) Label (c) Hint
31. 31.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) labels on every icon (d) icons with no labels
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Title: 19 px
    Footer: 20 px
    Label: 12 px
    Menu: 13 px
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Footer: 28 px
    Body text: 22 px
    Menu: 16 px (a) Title (b) Menu (c) Body text (d) Footer
34. 34.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
35. 35.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) icons with no labels (d) labels on every icon
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 21 px
    Title: 24 px
    Menu: 13 px
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Menu: 24 px
    Footer: 28 px
    Title: 20 px (a) Menu (b) Body text (c) Footer (d) Title
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Title: 15 px
    Menu: 24 px
39. 39.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Title: 21 px
    Hint: 10 px (a) Title (b) Hint (c) Caption

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