App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 487 · 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.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 17 px
   Hint: 26 px
   Menu: 10 px
   Footer: 19 px (a) Title (b) Hint (c) Menu (d) Footer
4. 4.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 10 px
   Menu: 16 px
   Body text: 12 px
6. 6.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) big touch targets (d) tiny tap areas
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 21 px
   Label: 20 px
   Hint: 9 px (a) Body text (b) Label (c) Hint
8. 8.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
9. 9.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) icons with no labels (d) captions on videos
10. 10.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
11. 11.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
12. 12.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a text label (d) a bright colour
13. 13.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
14. 14.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) icons with no labels (d) fast-flashing lights
15. 15.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
16. 16.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) strong colour contrast (d) text that can grow
17. 17.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) tiny tap areas (d) icons with no labels
18. 18.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
19. 19.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 24 px
    Body text: 24 px
    Hint: 16 px
    Label: 14 px
    Title: 25 px (a) Footer (b) Hint (c) Label (d) Body text
21. 21.🔍 Which is the odd one out? (a) fast-flashing lights (b) captions on videos (c) labels on every icon (d) big touch targets
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Footer: 10 px
    Caption: 19 px
    Label: 10 px
    Body text: 22 px
23. 23.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
24. 24.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
25. 25.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) tiny tap areas (d) icons with no labels
26. 26.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
27. 27.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
28. 28.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) captions on videos (d) strong colour contrast
29. 29.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
30. 30.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Footer: 12 px
    Menu: 26 px
    Title: 22 px (a) Hint (b) Menu (c) Title (d) Footer
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Title: 18 px
    Caption: 12 px
    Body text: 20 px
    Menu: 23 px (a) Hint (b) Title (c) Caption (d) Body text
33. 33.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) icons with no labels (d) colour as the only clue
34. 34.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) captions on videos (d) sudden loud sounds
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Title: 20 px
    Body text: 13 px
    Label: 21 px
    Hint: 28 px (a) Body text (b) Title (c) Label (d) Caption
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Title: 27 px
    Footer: 12 px
    Hint: 28 px (a) Hint (b) Title (c) Footer (d) Body text
37. 37.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
38. 38.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
39. 39.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
40. 40.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder

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