App Dev Worksheet: Accessibility

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

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