App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 129 · 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. Which text on this screen is too small?
   Hint: 20 px
   Caption: 11 px
   Menu: 18 px
   Footer: 25 px (a) Hint (b) Menu (c) Footer (d) Caption
2. 2.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
4. 4.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
5. 5.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
6. 6.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
7. 7.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
8. 8.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 26 px
   Menu: 16 px
   Body text: 13 px (a) Footer (b) Body text (c) Menu
10. 10.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (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?
    Label: 21 px
    Caption: 22 px
    Menu: 10 px (a) Caption (b) Menu (c) Label
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Label: 15 px
    Hint: 23 px
13. 13.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 22 px
    Caption: 11 px
    Body text: 26 px (a) Caption (b) Body text (c) Title
15. 15.Which of these makes the app harder to use? (a) strong colour contrast (b) tiny tap areas (c) labels on every icon (d) big touch targets
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Footer: 20 px
    Caption: 11 px
    Hint: 22 px
    Label: 22 px (a) Footer (b) Caption (c) Body text (d) Hint
17. 17.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) colour as the only clue (d) text that can grow
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 28 px
    Body text: 22 px
    Title: 19 px
    Footer: 14 px
    Hint: 16 px (a) Body text (b) Menu (c) Title (d) Footer
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Title: 22 px
    Caption: 24 px
    Body text: 26 px (a) Body text (b) Caption (c) Footer (d) Title
20. 20.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) tiny tap areas (d) strong colour contrast
21. 21.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) strong colour contrast (d) sudden loud sounds
22. 22.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
23. 23.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
24. 24.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
25. 25.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
27. 27.Which of these makes the app harder to use? (a) big touch targets (b) sudden loud sounds (c) captions on videos (d) labels on every icon
28. 28.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) big touch targets (d) tiny tap areas
29. 29.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) takes photos (d) plays music
30. 30.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) icons with no labels (d) labels on every icon
31. 31.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
32. 32.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
33. 33.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
34. 34.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Footer: 26 px
    Menu: 12 px (a) Footer (b) Caption (c) Menu
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Body text: 13 px
    Caption: 16 px (a) Caption (b) Body text (c) Title
37. 37.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) colour as the only clue (d) sudden loud sounds
38. 38.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Body text: 24 px
    Hint: 28 px (a) Hint (b) Body text (c) Caption
40. 40.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

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