App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 727 · 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.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
2. 2.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
3. 3.Which of these makes the app harder to use? (a) captions on videos (b) icons with no labels (c) big touch targets (d) strong colour contrast
4. 4.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) tiny tap areas
5. 5.♿ 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
6. 6.♿ 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
7. 7.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 11 px
   Caption: 22 px
   Label: 27 px (a) Caption (b) Label (c) Hint
9. 9.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
10. 10.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
11. 11.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
12. 12.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) icons with no labels (d) strong colour contrast
14. 14.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 26 px
    Footer: 10 px
    Caption: 27 px
    Hint: 16 px (a) Menu (b) Caption (c) Hint (d) Footer
16. 16.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
17. 17.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) colour as the only clue (d) text that can grow
18. 18.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) sudden loud sounds (d) text that can grow
19. 19.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) labels on every icon (d) big touch targets
21. 21.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Hint: 23 px
    Menu: 24 px
23. 23.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
24. 24.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
25. 25.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
26. 26.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
27. 27.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) strong colour contrast (d) labels on every icon
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Hint: 12 px
    Caption: 21 px
    Menu: 19 px
    Footer: 17 px (a) Caption (b) Hint (c) Menu (d) Label
29. 29.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) big touch targets (d) fast-flashing lights
30. 30.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
31. 31.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Label: 12 px
    Body text: 23 px
    Caption: 24 px (a) Title (b) Body text (c) Caption (d) Label
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 10 px
    Footer: 23 px
    Title: 22 px
    Body text: 24 px
    Menu: 23 px (a) Body text (b) Title (c) Footer (d) Caption
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Body text: 13 px
    Label: 20 px
    Hint: 24 px
    Caption: 16 px
35. 35.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Body text: 25 px
    Title: 17 px
    Caption: 9 px (a) Menu (b) Body text (c) Caption (d) Title
37. 37.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
38. 38.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) text that can grow (d) colour as the only clue
39. 39.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
40. 40.Which of these makes the app harder to use? (a) sudden loud sounds (b) strong colour contrast (c) labels on every icon (d) big touch targets

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