App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 420 · 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.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
3. 3.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
4. 4.♿ What does a screen reader do? (a) takes photos (b) plays music (c) reads the screen aloud (d) makes text tiny
5. 5.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
6. 6.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) icons with no labels (d) labels on every icon
7. 7.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to add colour (d) to slow them down
8. 8.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
9. 9.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) sudden loud sounds (d) big touch targets
10. 10.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) text that can grow (d) colour as the only clue
11. 11.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
12. 12.🔍 Which is the odd one out? (a) captions on videos (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
13. 13.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Label: 11 px
    Body text: 20 px
15. 15.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
16. 16.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Menu: 18 px
    Label: 18 px
    Caption: 23 px (a) Body text (b) Caption (c) Label (d) Menu
18. 18.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) labels on every icon (d) big touch targets
19. 19.Which of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) sudden loud sounds
20. 20.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) tiny tap areas (d) icons with no labels
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Footer: 21 px
    Label: 25 px
    Menu: 28 px (a) Footer (b) Menu (c) Body text (d) Label
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) big touch targets (c) strong colour contrast (d) labels on every icon
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Body text: 24 px
    Label: 23 px
    Hint: 14 px
24. 24.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
25. 25.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) fast-flashing lights (d) big touch targets
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 24 px
    Menu: 16 px
    Label: 10 px
    Hint: 20 px (a) Menu (b) Footer (c) Hint (d) Label
28. 28.Which of these helps everyone use the app? (a) sudden loud sounds (b) text that can grow (c) tiny tap areas (d) fast-flashing lights
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Hint: 12 px
    Caption: 18 px
    Label: 26 px (a) Label (b) Caption (c) Title (d) Hint
30. 30.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Hint: 24 px
    Footer: 19 px (a) Hint (b) Footer (c) Body text
32. 32.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) labels on every icon (d) big touch targets
33. 33.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
34. 34.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 17 px
    Footer: 18 px
    Title: 22 px
    Caption: 20 px
    Hint: 21 px
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Title: 14 px
    Footer: 16 px
    Caption: 23 px
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Footer: 16 px
    Body text: 24 px
    Label: 27 px (a) Footer (b) Body text (c) Label (d) Hint
38. 38.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
39. 39.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Hint: 18 px
    Footer: 11 px (a) Hint (b) Label (c) Footer

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