App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 485 · 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?
   Label: 12 px
   Menu: 11 px
   Caption: 12 px
2. 2.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 18 px
   Body text: 24 px
   Footer: 18 px
   Label: 17 px
   Menu: 17 px
4. 4.Which of these helps everyone use the app? (a) strong colour contrast (b) sudden loud sounds (c) icons with no labels (d) fast-flashing lights
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 12 px
   Menu: 23 px
   Hint: 24 px
   Footer: 26 px (a) Hint (b) Footer (c) Body text (d) Menu
6. 6.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 24 px
   Caption: 20 px
   Body text: 19 px
   Menu: 22 px
   Title: 12 px (a) Body text (b) Caption (c) Title (d) Footer
8. 8.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
9. 9.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
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.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) strong colour contrast (d) labels on every icon
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Footer: 22 px
    Hint: 10 px
    Title: 28 px
    Caption: 21 px (a) Title (b) Footer (c) Menu (d) Hint
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Menu: 20 px
    Body text: 10 px
14. 14.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
15. 15.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) fast-flashing lights (d) tiny tap areas
16. 16.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) nobody (d) only experts
17. 17.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
18. 18.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
19. 19.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
20. 20.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
21. 21.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) the battery (d) colour-blind users
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Hint: 11 px
    Footer: 23 px
    Label: 12 px
    Body text: 13 px
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 21 px
    Body text: 19 px
    Hint: 17 px
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Menu: 17 px
    Hint: 11 px (a) Body text (b) Hint (c) Menu
25. 25.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) fast-flashing lights (d) tiny tap areas
26. 26.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) colour as the only clue (d) labels on every icon
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Label: 19 px
    Caption: 11 px (a) Body text (b) Label (c) Caption
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 20 px
    Body text: 26 px
    Hint: 11 px
    Menu: 18 px (a) Caption (b) Menu (c) Body text (d) Hint
29. 29.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
30. 30.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
31. 31.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) tiny tap areas (d) strong colour contrast
32. 32.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 24 px
    Label: 11 px
    Body text: 17 px (a) Label (b) Body text (c) Hint
34. 34.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Body text: 21 px
    Caption: 19 px (a) Caption (b) Body text (c) Menu
36. 36.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) captions on videos (d) tiny tap areas
37. 37.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) tiny tap areas (d) captions on videos
38. 38.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
39. 39.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Menu: 9 px
    Label: 21 px
    Body text: 26 px (a) Body text (b) Hint (c) Menu (d) Label

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