App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 460 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 10 px
   Menu: 22 px
   Footer: 17 px
   Caption: 19 px
   Label: 14 px
2. 2.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) colour as the only clue (d) big touch targets
3. 3.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) sudden loud sounds (d) colour as the only clue
4. 4.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
5. 5.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
6. 6.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 23 px
   Title: 20 px
   Body text: 19 px
   Caption: 17 px
8. 8.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) fast-flashing lights (d) labels on every icon
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Menu: 13 px
    Caption: 25 px
    Label: 21 px (a) Label (b) Footer (c) Caption (d) Menu
11. 11.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
12. 12.Which of these helps everyone use the app? (a) sudden loud sounds (b) strong colour contrast (c) icons with no labels (d) fast-flashing lights
13. 13.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) captions on videos (d) fast-flashing lights
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Hint: 28 px
    Body text: 10 px (a) Body text (b) Menu (c) Hint
15. 15.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) tiny tap areas (d) sudden loud sounds
16. 16.🔍 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
17. 17.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) captions on videos
18. 18.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) tiny tap areas (d) strong colour contrast
19. 19.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) labels on every icon
20. 20.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Body text: 11 px
    Hint: 17 px (a) Menu (b) Body text (c) Hint
22. 22.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
23. 23.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
24. 24.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Label: 25 px
    Body text: 28 px
    Hint: 18 px
    Footer: 23 px (a) Body text (b) Hint (c) Title (d) Label
26. 26.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) strong colour contrast (d) captions on videos
27. 27.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
28. 28.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) colour-blind users (d) fast typists
29. 29.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) plays music (d) makes text tiny
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Menu: 21 px
    Hint: 16 px
    Title: 11 px
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 20 px
    Caption: 20 px
    Label: 20 px
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Hint: 23 px
    Title: 17 px
    Menu: 17 px (a) Hint (b) Footer (c) Title (d) Menu
33. 33.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
34. 34.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
35. 35.Which of these helps everyone use the app? (a) fast-flashing lights (b) text that can grow (c) tiny tap areas (d) icons with no labels
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 20 px
    Hint: 20 px
    Caption: 16 px
    Label: 23 px
    Title: 17 px
37. 37.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a bright colour (d) a long animation
38. 38.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) icons with no labels (d) strong colour contrast
39. 39.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) fast-flashing lights
40. 40.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) tiny tap areas (d) sudden loud sounds

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