App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 385 · 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) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) big touch targets
2. 2.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 17 px
   Hint: 10 px
   Title: 16 px
   Body text: 17 px (a) Title (b) Body text (c) Menu (d) Hint
4. 4.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
5. 5.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 10 px
   Body text: 17 px
   Title: 22 px
7. 7.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) big touch targets (d) tiny tap areas
8. 8.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
9. 9.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Caption: 12 px
    Body text: 22 px (a) Menu (b) Body text (c) Caption
11. 11.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
12. 12.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
13. 13.Which of these helps everyone use the app? (a) fast-flashing lights (b) strong colour contrast (c) tiny tap areas (d) sudden loud sounds
14. 14.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
16. 16.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) tiny tap areas
17. 17.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) colour as the only clue (d) icons with no labels
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Menu: 14 px
    Title: 16 px
    Body text: 25 px (a) Menu (b) Title (c) Body text (d) Hint
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Title: 28 px
    Hint: 19 px
    Body text: 10 px (a) Title (b) Body text (c) Hint (d) Menu
20. 20.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 22 px
    Hint: 25 px
    Label: 16 px
    Body text: 23 px
    Title: 10 px (a) Title (b) Footer (c) Label (d) Hint
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 12 px
    Caption: 24 px
    Footer: 27 px
    Body text: 21 px
    Label: 22 px (a) Body text (b) Caption (c) Hint (d) Footer
23. 23.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) text that can grow (d) labels on every icon
24. 24.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) labels on every icon (d) text that can grow
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 21 px
    Body text: 28 px
    Hint: 21 px
    Caption: 12 px (a) Body text (b) Title (c) Caption (d) Hint
26. 26.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) strong colour contrast (d) icons with no labels
28. 28.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
29. 29.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
30. 30.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
31. 31.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) colour as the only clue (d) captions on videos
32. 32.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
33. 33.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
34. 34.Which of these makes the app harder to use? (a) icons with no labels (b) labels on every icon (c) captions on videos (d) big touch targets
35. 35.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) labels on every icon (d) tiny tap areas
36. 36.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 16 px
    Caption: 13 px
    Hint: 15 px
    Body text: 16 px
    Menu: 21 px
38. 38.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) sudden loud sounds (d) fast-flashing lights
39. 39.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
40. 40.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?

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