App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 613 · 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.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) tiny tap areas (d) captions on videos
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 16 px
   Hint: 24 px
   Title: 10 px
3. 3.Which of these makes the app harder to use? (a) tiny tap areas (b) text that can grow (c) labels on every icon (d) big touch targets
4. 4.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
6. 6.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) so anyone can follow (d) to slow them down
7. 7.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) sudden loud sounds (d) captions on videos
8. 8.Which of these helps everyone use the app? (a) strong colour contrast (b) sudden loud sounds (c) icons with no labels (d) fast-flashing lights
9. 9.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
10. 10.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
11. 11.Which of these helps everyone use the app? (a) fast-flashing lights (b) text that can grow (c) sudden loud sounds (d) tiny tap areas
12. 12.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) icons with no labels
13. 13.Which of these helps everyone use the app? (a) big touch targets (b) fast-flashing lights (c) tiny tap areas (d) sudden loud sounds
14. 14.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) labels on every icon (d) icons with no labels
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Body text: 12 px
    Caption: 16 px (a) Body text (b) Menu (c) Caption
16. 16.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
17. 17.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 24 px
    Title: 24 px
    Footer: 18 px
    Caption: 19 px
19. 19.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) labels on every icon (d) tiny tap areas
20. 20.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a long animation (d) a bright colour
21. 21.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
22. 22.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
23. 23.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Body text: 12 px
    Caption: 17 px (a) Menu (b) Body text (c) Caption
25. 25.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) fast-flashing lights (d) captions on videos
26. 26.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
27. 27.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 14 px
    Footer: 18 px
    Body text: 16 px
    Menu: 17 px
    Label: 28 px (a) Menu (b) Caption (c) Body text (d) Footer
29. 29.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) colour as the only clue (d) big touch targets
30. 30.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Body text: 11 px
    Title: 24 px
32. 32.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) colour as the only clue (d) big touch targets
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Footer: 18 px
    Title: 22 px
    Caption: 19 px
    Menu: 11 px (a) Menu (b) Footer (c) Body text (d) Title
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Title: 18 px
    Menu: 23 px
    Label: 15 px
    Footer: 22 px
35. 35.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
36. 36.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
37. 37.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) everyone (d) only experts
39. 39.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
40. 40.True or false: “text that can grow” makes the app harder to use. (a) False (b) True

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