App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 242 · 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.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
2. 2.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) tiny tap areas (d) captions on videos
3. 3.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
4. 4.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) captions on videos (d) strong colour contrast
5. 5.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
6. 6.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
7. 7.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
8. 8.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
9. 9.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 23 px
    Body text: 11 px
    Footer: 12 px
    Label: 10 px
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Hint: 19 px
    Title: 21 px (a) Body text (b) Hint (c) Title
12. 12.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
13. 13.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 17 px
    Title: 25 px
    Body text: 12 px (a) Title (b) Body text (c) Footer
15. 15.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
16. 16.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) captions on videos (d) text that can grow
17. 17.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
18. 18.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
19. 19.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
20. 20.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Label: 25 px
    Menu: 20 px (a) Label (b) Hint (c) Menu
22. 22.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 12 px
    Hint: 18 px
    Caption: 26 px
    Menu: 20 px (a) Menu (b) Caption (c) Hint (d) Label
24. 24.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) strong colour contrast (d) fast-flashing lights
25. 25.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
26. 26.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
28. 28.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Caption: 18 px
    Footer: 27 px
    Title: 26 px (a) Caption (b) Footer (c) Title (d) Menu
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 20 px
    Caption: 11 px
    Title: 10 px
    Label: 24 px
    Footer: 22 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Title: 12 px
    Label: 23 px
    Caption: 26 px (a) Caption (b) Footer (c) Label (d) Title
32. 32.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) icons with no labels (d) tiny tap areas
33. 33.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
34. 34.Which of these makes the app harder to use? (a) fast-flashing lights (b) strong colour contrast (c) captions on videos (d) labels on every icon
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Hint: 13 px
    Title: 16 px
    Menu: 24 px
    Body text: 18 px (a) Label (b) Hint (c) Menu (d) Title
36. 36.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) tiny tap areas (d) sudden loud sounds
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Caption: 18 px
    Hint: 16 px
38. 38.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) text that can grow
39. 39.Which of these makes the app harder to use? (a) captions on videos (b) tiny tap areas (c) big touch targets (d) labels on every icon
40. 40.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?

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