App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 705 · 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?
   Footer: 26 px
   Menu: 26 px
   Title: 13 px (a) Menu (b) Title (c) Footer
2. 2.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
3. 3.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) fast-flashing lights (d) tiny tap areas
4. 4.Which of these makes the app harder to use? (a) big touch targets (b) sudden loud sounds (c) captions on videos (d) strong colour contrast
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 16 px
   Title: 12 px
   Caption: 12 px
   Body text: 14 px
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 26 px
   Menu: 16 px
   Footer: 10 px (a) Caption (b) Menu (c) Footer
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 13 px
   Body text: 23 px
   Hint: 12 px
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 18 px
   Footer: 28 px
   Caption: 22 px
   Title: 12 px (a) Caption (b) Title (c) Hint (d) Footer
9. 9.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) sudden loud sounds (d) text that can grow
10. 10.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Label: 16 px
    Footer: 22 px
    Menu: 18 px
    Body text: 12 px (a) Body text (b) Title (c) Footer (d) Label
12. 12.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Footer: 21 px
    Hint: 15 px
    Title: 24 px
14. 14.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) big touch targets
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Caption: 17 px
    Hint: 16 px
    Menu: 19 px
    Footer: 11 px
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Hint: 22 px
    Caption: 19 px
    Footer: 21 px
    Label: 12 px (a) Hint (b) Title (c) Caption (d) Label
18. 18.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Caption: 18 px
    Title: 26 px
    Footer: 9 px (a) Footer (b) Caption (c) Title (d) Hint
20. 20.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
21. 21.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
22. 22.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
23. 23.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
24. 24.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
26. 26.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) tiny tap areas (d) fast-flashing lights
27. 27.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
28. 28.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Menu: 16 px
    Hint: 20 px
    Caption: 10 px
    Body text: 15 px
30. 30.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
31. 31.Which of these helps everyone use the app? (a) labels on every icon (b) colour as the only clue (c) icons with no labels (d) sudden loud sounds
32. 32.Which of these helps everyone use the app? (a) big touch targets (b) tiny tap areas (c) colour as the only clue (d) fast-flashing lights
33. 33.♿ A screen has 8 icon buttons. Only 3 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) big touch targets (c) strong colour contrast (d) text that can grow
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 17 px
    Label: 23 px
    Title: 14 px
    Menu: 16 px (a) Label (b) Menu (c) Title (d) Footer
36. 36.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
37. 37.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
38. 38.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) strong colour contrast (d) labels on every icon
40. 40.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

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