App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 500 · 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 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
2. 2.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
3. 3.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 23 px
   Body text: 14 px
   Menu: 15 px
   Title: 15 px
5. 5.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) text that can grow (d) sudden loud sounds
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 21 px
   Title: 11 px
   Menu: 18 px
7. 7.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) labels on every icon (d) sudden loud sounds
9. 9.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
10. 10.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
11. 11.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
12. 12.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
13. 13.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
14. 14.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) so anyone can follow (d) to hide the sound
15. 15.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
17. 17.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
18. 18.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) icons with no labels (d) colour as the only clue
19. 19.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) fast-flashing lights (d) big touch targets
20. 20.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
21. 21.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Footer: 23 px
    Menu: 21 px
    Title: 10 px
    Caption: 20 px
23. 23.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) tiny tap areas (d) strong colour contrast
24. 24.Which of these helps everyone use the app? (a) captions on videos (b) icons with no labels (c) tiny tap areas (d) colour as the only clue
25. 25.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
26. 26.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) colour as the only clue (d) text that can grow
27. 27.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Caption: 19 px
    Footer: 20 px
    Menu: 18 px
    Hint: 23 px (a) Menu (b) Title (c) Footer (d) Caption
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 20 px
    Body text: 25 px
    Menu: 22 px
    Title: 11 px
    Label: 27 px (a) Menu (b) Title (c) Body text (d) Footer
30. 30.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 18 px
    Body text: 22 px
    Title: 11 px
32. 32.Which of these helps everyone use the app? (a) fast-flashing lights (b) labels on every icon (c) icons with no labels (d) sudden loud sounds
33. 33.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) big touch targets (d) icons with no labels
35. 35.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
36. 36.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
37. 37.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Label: 18 px
    Hint: 18 px
    Title: 23 px
    Menu: 10 px
39. 39.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Caption: 12 px
    Label: 19 px (a) Footer (b) Caption (c) Label

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