App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 252 · 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) makes text tiny (c) plays music (d) takes photos
2. 2.Which of these makes the app harder to use? (a) tiny tap areas (b) captions on videos (c) labels on every icon (d) big touch targets
3. 3.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) text that can grow (d) colour as the only clue
4. 4.Which of these helps everyone use the app? (a) labels on every icon (b) tiny tap areas (c) colour as the only clue (d) sudden loud sounds
5. 5.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) text that can grow (d) strong colour contrast
7. 7.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 20 px
   Caption: 13 px
   Body text: 12 px
   Title: 13 px
   Footer: 18 px
9. 9.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 22 px
    Title: 14 px
    Hint: 12 px
11. 11.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a bright colour (d) a long animation
12. 12.Which of these makes the app harder to use? (a) sudden loud sounds (b) big touch targets (c) text that can grow (d) labels on every icon
13. 13.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
14. 14.Which of these makes the app harder to use? (a) fast-flashing lights (b) strong colour contrast (c) big touch targets (d) text that can grow
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Body text: 23 px
    Caption: 9 px (a) Caption (b) Body text (c) Title
16. 16.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
17. 17.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only experts (d) only the coder
19. 19.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
20. 20.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) big touch targets
22. 22.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
23. 23.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Caption: 23 px
    Hint: 11 px
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Hint: 12 px
    Title: 14 px
    Body text: 23 px
27. 27.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
28. 28.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) text that can grow (d) colour as the only clue
29. 29.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
30. 30.Which of these helps everyone use the app? (a) fast-flashing lights (b) big touch targets (c) colour as the only clue (d) sudden loud sounds
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Body text: 26 px
    Menu: 12 px
    Hint: 22 px
    Footer: 22 px (a) Menu (b) Caption (c) Body text (d) Hint
32. 32.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) icons with no labels (d) text that can grow
33. 33.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
34. 34.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
35. 35.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Body text: 13 px
    Label: 28 px
    Menu: 20 px (a) Label (b) Body text (c) Hint (d) Menu
37. 37.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) big touch targets
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Hint: 23 px
    Menu: 26 px
    Label: 23 px
    Title: 25 px (a) Menu (b) Hint (c) Body text (d) Label
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Title: 16 px
    Hint: 24 px
    Body text: 13 px
40. 40.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) icons with no labels (d) fast-flashing lights

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