App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 479 · 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 does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) takes photos (d) plays music
2. 2.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) fast-flashing lights (d) labels on every icon
3. 3.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 15 px
   Menu: 12 px
   Body text: 13 px
   Caption: 10 px
5. 5.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
6. 6.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) sudden loud sounds (d) big touch targets
7. 7.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
8. 8.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
9. 9.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Label: 11 px
    Title: 23 px (a) Title (b) Label (c) Hint
11. 11.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
12. 12.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) captions on videos (d) labels on every icon
14. 14.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
15. 15.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
16. 16.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) captions on videos (d) big touch targets
17. 17.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Title: 11 px
    Footer: 22 px
    Label: 16 px
    Caption: 16 px
19. 19.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) colour as the only clue (d) labels on every icon
20. 20.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) text that can grow (d) fast-flashing lights
21. 21.Which of these helps everyone use the app? (a) strong colour contrast (b) fast-flashing lights (c) sudden loud sounds (d) colour as the only clue
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 21 px
    Hint: 14 px
    Footer: 12 px
    Caption: 15 px
    Menu: 22 px
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Title: 14 px
    Caption: 24 px
    Hint: 22 px (a) Caption (b) Footer (c) Title (d) Hint
24. 24.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Footer: 13 px
    Body text: 22 px
    Title: 23 px
    Label: 17 px (a) Footer (b) Title (c) Menu (d) Body text
26. 26.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Body text: 21 px
    Hint: 21 px (a) Body text (b) Hint (c) Menu
28. 28.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) captions on videos
29. 29.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
30. 30.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Title: 15 px
    Footer: 10 px
    Caption: 15 px
32. 32.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
33. 33.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) icons with no labels (d) sudden loud sounds
35. 35.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
36. 36.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
37. 37.Which of these makes the app harder to use? (a) icons with no labels (b) labels on every icon (c) big touch targets (d) strong colour contrast
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Footer: 11 px
    Hint: 18 px
    Caption: 13 px
    Label: 19 px
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Menu: 9 px
    Body text: 28 px
    Label: 24 px
    Title: 22 px (a) Label (b) Body text (c) Menu (d) Hint
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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