App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 315 · 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.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
2. 2.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
3. 3.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) fast-flashing lights (d) big touch targets
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 24 px
   Title: 12 px
   Label: 12 px
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 27 px
   Label: 11 px
   Title: 17 px
   Footer: 24 px (a) Caption (b) Footer (c) Title (d) Label
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 11 px
   Caption: 16 px
   Menu: 28 px (a) Caption (b) Title (c) Menu
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 22 px
   Footer: 13 px
   Hint: 24 px
   Body text: 12 px
   Menu: 11 px
8. 8.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
9. 9.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
10. 10.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) text that can grow (d) sudden loud sounds
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Title: 28 px
    Label: 17 px (a) Title (b) Label (c) Hint
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Caption: 23 px
    Body text: 16 px
    Title: 23 px
    Hint: 12 px
14. 14.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) strong colour contrast (d) captions on videos
15. 15.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) colour as the only clue
16. 16.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
17. 17.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Hint: 11 px
    Body text: 12 px
    Menu: 23 px
19. 19.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
20. 20.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
21. 21.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
22. 22.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) text that can grow (d) icons with no labels
23. 23.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
24. 24.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
25. 25.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) strong colour contrast (d) labels on every icon
27. 27.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) icons with no labels (d) sudden loud sounds
29. 29.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
30. 30.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
31. 31.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
32. 32.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Caption: 19 px
    Body text: 13 px
34. 34.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) text that can grow (d) icons with no labels
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Title: 16 px
    Hint: 15 px
    Body text: 17 px
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Footer: 18 px
    Label: 26 px (a) Menu (b) Footer (c) Label
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Title: 19 px
    Label: 11 px
    Menu: 19 px
38. 38.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
39. 39.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) strong colour contrast
40. 40.Which of these makes the app harder to use? (a) icons with no labels (b) text that can grow (c) labels on every icon (d) big touch targets

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