App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 300 · 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 of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) big touch targets
2. 2.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) text that can grow (d) sudden loud sounds
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 15 px
   Menu: 13 px
   Label: 22 px
4. 4.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
5. 5.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
6. 6.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) captions on videos (d) big touch targets
7. 7.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
8. 8.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
9. 9.Which of these helps everyone use the app? (a) captions on videos (b) tiny tap areas (c) colour as the only clue (d) icons with no labels
10. 10.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
11. 11.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
12. 12.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Caption: 24 px
    Menu: 15 px
    Title: 13 px
14. 14.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
15. 15.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) big touch targets (d) icons with no labels
16. 16.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) tiny tap areas (d) sudden loud sounds
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Hint: 20 px
    Footer: 18 px
    Label: 21 px
18. 18.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) tiny tap areas (d) sudden loud sounds
19. 19.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) strong colour contrast (d) sudden loud sounds
20. 20.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
21. 21.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Menu: 14 px
    Hint: 21 px
23. 23.♿ What does a screen reader do? (a) takes photos (b) plays music (c) reads the screen aloud (d) makes text tiny
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Body text: 19 px
    Title: 18 px (a) Title (b) Body text (c) Label
25. 25.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
26. 26.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
28. 28.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Caption: 20 px
    Menu: 15 px
    Title: 10 px
30. 30.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
31. 31.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
32. 32.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) strong colour contrast (d) fast-flashing lights
33. 33.♿ 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
34. 34.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
35. 35.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) tiny tap areas (d) labels on every icon
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Title: 14 px
    Caption: 24 px (a) Title (b) Caption (c) Label
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Label: 12 px
    Body text: 18 px
    Title: 27 px (a) Body text (b) Label (c) Menu (d) Title
38. 38.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
39. 39.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
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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