App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 358 · 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?
   Body text: 26 px
   Footer: 19 px
   Caption: 23 px
   Label: 9 px (a) Caption (b) Footer (c) Body text (d) Label
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 18 px
   Label: 27 px
   Body text: 11 px (a) Label (b) Body text (c) Caption
3. 3.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
4. 4.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) text that can grow (d) labels on every icon
5. 5.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) so anyone can follow (d) to hide the sound
6. 6.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
7. 7.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) fast-flashing lights (d) icons with no labels
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 18 px
   Caption: 11 px
   Label: 22 px (a) Title (b) Caption (c) Label
9. 9.Which of these helps everyone use the app? (a) big touch targets (b) tiny tap areas (c) sudden loud sounds (d) icons with no labels
10. 10.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
11. 11.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
12. 12.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Body text: 13 px
    Caption: 14 px
    Footer: 23 px
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Caption: 21 px
    Title: 13 px
    Menu: 16 px
    Hint: 11 px
15. 15.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
16. 16.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
17. 17.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (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?
    Caption: 11 px
    Label: 17 px
    Menu: 26 px
    Hint: 24 px
    Title: 19 px (a) Label (b) Hint (c) Menu (d) Caption
19. 19.🔍 Which is the odd one out? (a) colour as the only clue (b) text that can grow (c) big touch targets (d) labels on every icon
20. 20.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
21. 21.♿ A screen has 10 icon buttons. Only 8 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?
    Menu: 24 px
    Label: 10 px
    Footer: 16 px
    Body text: 18 px
23. 23.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) icons with no labels (d) colour as the only clue
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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Hint: 19 px
    Footer: 22 px
26. 26.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
27. 27.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) labels on every icon (d) fast-flashing lights
28. 28.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Menu: 16 px
    Hint: 23 px
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Title: 25 px
    Caption: 16 px
    Label: 12 px (a) Footer (b) Title (c) Label (d) Caption
31. 31.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
32. 32.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
33. 33.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
34. 34.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
35. 35.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
36. 36.Which of these makes the app harder to use? (a) icons with no labels (b) labels on every icon (c) captions on videos (d) strong colour contrast
37. 37.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) strong colour contrast (d) sudden loud sounds
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Hint: 22 px
    Title: 21 px
39. 39.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
40. 40.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder

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