App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 493 · 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 1 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
4. 4.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) fast-flashing lights (d) captions on videos
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 9 px
   Caption: 18 px
   Title: 26 px
   Footer: 18 px
   Label: 19 px (a) Footer (b) Caption (c) Title (d) Hint
6. 6.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
7. 7.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) icons with no labels (d) sudden loud sounds
8. 8.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
9. 9.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
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.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
12. 12.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) the server (d) fast typists
13. 13.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
14. 14.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) fast-flashing lights (d) colour as the only clue
15. 15.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
16. 16.Which of these helps everyone use the app? (a) colour as the only clue (b) big touch targets (c) icons with no labels (d) fast-flashing lights
17. 17.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) fast-flashing lights (d) labels on every icon
18. 18.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
19. 19.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) labels on every icon (d) fast-flashing lights
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Hint: 26 px
    Caption: 20 px
    Title: 24 px
    Footer: 16 px (a) Caption (b) Title (c) Body text (d) Hint
21. 21.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Caption: 24 px
    Footer: 12 px
    Menu: 14 px
23. 23.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
24. 24.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
25. 25.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Label: 14 px
    Hint: 17 px
    Footer: 11 px
    Caption: 20 px
27. 27.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) captions on videos (d) strong colour contrast
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Label: 13 px
    Caption: 18 px
29. 29.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
30. 30.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Menu: 11 px
    Footer: 16 px
    Label: 18 px
    Body text: 22 px (a) Menu (b) Label (c) Footer (d) Caption
32. 32.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) big touch targets (d) fast-flashing lights
33. 33.Which of these helps everyone use the app? (a) fast-flashing lights (b) captions on videos (c) icons with no labels (d) tiny tap areas
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 27 px
    Body text: 17 px
    Caption: 26 px
    Footer: 11 px
    Hint: 27 px (a) Body text (b) Caption (c) Footer (d) Label
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Menu: 21 px
    Title: 9 px
    Hint: 28 px (a) Menu (b) Body text (c) Title (d) Hint
36. 36.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
37. 37.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Body text: 10 px
    Footer: 18 px
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Caption: 17 px
    Footer: 16 px
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 24 px
    Hint: 17 px
    Footer: 12 px
    Title: 24 px

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