App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 684 · 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) colour as the only clue (b) tiny tap areas (c) fast-flashing lights (d) big touch targets
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 21 px
   Caption: 14 px
   Title: 15 px
   Label: 16 px
   Hint: 13 px
3. 3.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
4. 4.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a sound (d) a long animation
5. 5.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
6. 6.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (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.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) colour as the only clue (d) icons with no labels
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 10 px
   Caption: 12 px
   Footer: 23 px
10. 10.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) fast-flashing lights (d) sudden loud sounds
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Label: 27 px
    Caption: 27 px
    Footer: 19 px
    Hint: 17 px (a) Footer (b) Label (c) Body text (d) Caption
12. 12.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
13. 13.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Body text: 14 px
    Menu: 20 px
15. 15.Which of these helps everyone use the app? (a) strong colour contrast (b) sudden loud sounds (c) tiny tap areas (d) icons with no labels
16. 16.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) captions on videos
17. 17.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Footer: 20 px
    Label: 13 px
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Body text: 15 px
    Title: 22 px
    Caption: 12 px
    Hint: 23 px
20. 20.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 25 px
    Menu: 22 px
    Label: 24 px
    Title: 20 px
    Footer: 14 px (a) Footer (b) Menu (c) Hint (d) Label
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Title: 14 px
    Menu: 11 px
    Footer: 22 px
    Body text: 24 px
23. 23.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
24. 24.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) labels on every icon (d) icons with no labels
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Footer: 17 px
    Caption: 21 px
    Hint: 16 px
    Body text: 12 px
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Title: 11 px
    Label: 27 px (a) Footer (b) Title (c) Label
27. 27.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
28. 28.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Label: 23 px
    Footer: 9 px
    Caption: 16 px (a) Label (b) Menu (c) Caption (d) Footer
30. 30.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) big touch targets (d) colour as the only clue
31. 31.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Body text: 11 px
    Menu: 14 px
    Label: 16 px
33. 33.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
34. 34.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) fast-flashing lights (d) sudden loud sounds
35. 35.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) strong colour contrast (d) fast-flashing lights
36. 36.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) tiny tap areas (d) big touch targets
38. 38.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
39. 39.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
40. 40.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?

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