App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 57 · 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.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a sound (d) a long animation
2. 2.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
3. 3.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 23 px
   Caption: 13 px
   Menu: 17 px
5. 5.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) big touch targets (d) fast-flashing lights
6. 6.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 22 px
   Body text: 17 px
   Caption: 12 px
   Label: 26 px (a) Menu (b) Body text (c) Label (d) Caption
8. 8.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
9. 9.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
10. 10.Which of these helps everyone use the app? (a) fast-flashing lights (b) big touch targets (c) sudden loud sounds (d) icons with no labels
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 23 px
    Footer: 28 px
    Hint: 10 px (a) Footer (b) Menu (c) Hint
12. 12.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Body text: 19 px
    Footer: 27 px
    Caption: 14 px (a) Title (b) Footer (c) Body text (d) Caption
14. 14.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Title: 10 px
    Body text: 16 px
    Label: 18 px
    Footer: 21 px (a) Label (b) Body text (c) Caption (d) Title
16. 16.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) colour as the only clue
17. 17.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
18. 18.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 21 px
    Body text: 9 px
    Menu: 21 px
    Hint: 24 px (a) Menu (b) Label (c) Hint (d) Body text
20. 20.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) fast-flashing lights (d) labels on every icon
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Caption: 14 px
    Body text: 19 px
    Title: 21 px
    Menu: 19 px (a) Body text (b) Caption (c) Title (d) Label
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Label: 26 px
    Caption: 20 px
    Title: 10 px (a) Title (b) Label (c) Caption (d) Footer
23. 23.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 15 px
    Title: 11 px
    Body text: 23 px
    Hint: 22 px
25. 25.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Menu: 11 px
    Body text: 26 px
    Hint: 25 px
    Caption: 20 px (a) Footer (b) Hint (c) Body text (d) Menu
27. 27.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Title: 22 px
    Caption: 17 px
    Footer: 22 px
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Footer: 19 px
    Hint: 28 px (a) Footer (b) Hint (c) Body text
30. 30.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) colour as the only clue (d) fast-flashing lights
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Label: 23 px
    Footer: 21 px
32. 32.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
33. 33.Which of these makes the app harder to use? (a) strong colour contrast (b) tiny tap areas (c) captions on videos (d) labels on every icon
34. 34.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) strong colour contrast (d) text that can grow
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Body text: 22 px
    Menu: 18 px
    Footer: 17 px
    Label: 19 px
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Caption: 11 px
    Body text: 21 px
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Footer: 18 px
    Hint: 26 px
    Body text: 13 px
    Caption: 18 px (a) Body text (b) Footer (c) Hint (d) Title
38. 38.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
39. 39.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
40. 40.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder

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