App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 124 · 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.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
2. 2.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 24 px
   Label: 13 px
   Caption: 16 px
4. 4.Which of these helps everyone use the app? (a) captions on videos (b) icons with no labels (c) fast-flashing lights (d) tiny tap areas
5. 5.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) captions on videos (d) sudden loud sounds
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 20 px
   Label: 18 px
   Body text: 12 px
   Caption: 15 px
   Menu: 12 px
7. 7.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) text that can grow (d) tiny tap areas
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 19 px
   Footer: 10 px
   Title: 20 px
   Hint: 18 px (a) Body text (b) Hint (c) Footer (d) Title
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 17 px
   Label: 13 px
   Caption: 18 px
   Hint: 19 px (a) Hint (b) Menu (c) Label (d) Caption
10. 10.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 24 px
    Title: 9 px
    Hint: 22 px
    Footer: 20 px (a) Hint (b) Menu (c) Footer (d) Title
12. 12.Which of these helps everyone use the app? (a) fast-flashing lights (b) labels on every icon (c) tiny tap areas (d) colour as the only clue
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Caption: 13 px
    Hint: 23 px
    Menu: 18 px
14. 14.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) fast-flashing lights
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 14 px
    Label: 17 px
    Title: 24 px (a) Caption (b) Label (c) Title
16. 16.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
17. 17.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) the server (d) fast typists
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Footer: 11 px
    Label: 14 px
19. 19.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights
21. 21.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) text that can grow (d) icons with no labels
22. 22.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) colour as the only clue (d) text that can grow
23. 23.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) strong colour contrast (d) sudden loud sounds
24. 24.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
25. 25.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Caption: 21 px
    Body text: 12 px
    Hint: 23 px
    Menu: 23 px
27. 27.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
28. 28.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
30. 30.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) colour as the only clue (d) labels on every icon
31. 31.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
32. 32.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
33. 33.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
34. 34.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
35. 35.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
36. 36.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
37. 37.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Title: 10 px
    Footer: 17 px
39. 39.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
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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