App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 526 · 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) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) captions on videos
2. 2.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
3. 3.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
4. 4.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
5. 5.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
6. 6.Which of these makes the app harder to use? (a) text that can grow (b) colour as the only clue (c) captions on videos (d) labels on every icon
7. 7.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
8. 8.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
9. 9.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) icons with no labels (d) captions on videos
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 22 px
    Hint: 9 px
    Label: 21 px
    Body text: 23 px
    Footer: 17 px (a) Label (b) Body text (c) Hint (d) Title
11. 11.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
12. 12.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Title: 11 px
    Footer: 21 px
    Label: 23 px (a) Label (b) Footer (c) Title (d) Body text
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Body text: 15 px
    Footer: 14 px
    Caption: 11 px
    Hint: 14 px
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Hint: 19 px
    Body text: 10 px
    Label: 11 px
17. 17.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
18. 18.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
19. 19.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Caption: 24 px
    Title: 18 px
    Label: 19 px (a) Hint (b) Title (c) Caption (d) Label
21. 21.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) sudden loud sounds (d) text that can grow
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Menu: 26 px
    Footer: 9 px
    Caption: 26 px
    Title: 17 px (a) Caption (b) Hint (c) Menu (d) Footer
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Label: 20 px
    Hint: 12 px (a) Body text (b) Label (c) Hint
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Title: 11 px
    Hint: 16 px
25. 25.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
26. 26.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Caption: 10 px
    Menu: 10 px
    Title: 18 px
    Body text: 12 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 13 px
    Footer: 12 px
    Caption: 16 px
    Body text: 13 px
29. 29.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
30. 30.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
31. 31.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
32. 32.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Body text: 10 px
    Label: 24 px
    Menu: 19 px
34. 34.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) fast-flashing lights (d) sudden loud sounds
35. 35.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) fast-flashing lights (d) strong colour contrast
36. 36.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
37. 37.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Menu: 16 px
    Body text: 12 px
    Footer: 28 px (a) Hint (b) Menu (c) Body text (d) Footer
39. 39.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) labels on every icon (d) fast-flashing lights
40. 40.True or false: “big touch targets” makes the app harder to use. (a) True (b) False

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