App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 567 · 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) labels on every icon (d) tiny tap areas
2. 2.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
3. 3.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
4. 4.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to add colour (d) to slow them down
5. 5.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
6. 6.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
7. 7.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
8. 8.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
9. 9.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
10. 10.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
11. 11.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
12. 12.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
13. 13.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) fast-flashing lights (d) icons with no labels
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Title: 20 px
    Body text: 24 px
    Label: 17 px
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Body text: 24 px
    Title: 13 px
    Footer: 27 px
    Hint: 28 px (a) Caption (b) Footer (c) Title (d) Body text
16. 16.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Body text: 18 px
    Footer: 12 px
    Label: 15 px
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Menu: 13 px
    Body text: 20 px
    Footer: 27 px (a) Body text (b) Label (c) Footer (d) Menu
19. 19.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
20. 20.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Menu: 20 px
    Label: 16 px
    Footer: 17 px
22. 22.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) icons with no labels (d) captions on videos
23. 23.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Footer: 22 px
    Hint: 9 px
    Label: 22 px
    Menu: 18 px (a) Body text (b) Footer (c) Hint (d) Label
25. 25.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) sudden loud sounds (d) fast-flashing lights
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?
    Footer: 10 px
    Body text: 23 px
    Label: 15 px
    Caption: 19 px
28. 28.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
29. 29.Which of these helps everyone use the app? (a) strong colour contrast (b) icons with no labels (c) colour as the only clue (d) sudden loud sounds
30. 30.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) fast-flashing lights (d) big touch targets
31. 31.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
32. 32.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Title: 18 px
    Caption: 20 px (a) Hint (b) Title (c) Caption
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Label: 23 px
    Body text: 9 px
    Caption: 28 px
    Menu: 20 px (a) Hint (b) Body text (c) Caption (d) Label
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Footer: 16 px
    Label: 16 px (a) Title (b) Label (c) Footer
37. 37.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) captions on videos (d) icons with no labels
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 16 px
    Menu: 13 px
    Footer: 23 px
39. 39.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
40. 40.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) text that can grow

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