App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 453 · 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 of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) colour as the only clue
2. 2.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) text that can grow
3. 3.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) text that can grow
5. 5.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
6. 6.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
7. 7.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) big touch targets (d) tiny tap areas
8. 8.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
9. 9.Which of these helps everyone use the app? (a) sudden loud sounds (b) captions on videos (c) fast-flashing lights (d) colour as the only clue
10. 10.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) fast-flashing lights (d) big touch targets
11. 11.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
12. 12.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
13. 13.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) text that can grow
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Footer: 23 px
    Body text: 24 px
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Body text: 26 px
    Hint: 27 px
    Title: 10 px
    Menu: 26 px (a) Title (b) Body text (c) Footer (d) Hint
16. 16.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) tiny tap areas (d) icons with no labels
17. 17.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
18. 18.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Title: 14 px
    Caption: 15 px
    Footer: 22 px
20. 20.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) labels on every icon (d) fast-flashing lights
21. 21.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) sudden loud sounds (d) labels on every icon
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) labels on every icon (d) tiny tap areas
23. 23.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
24. 24.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
25. 25.Which of these helps everyone use the app? (a) strong colour contrast (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
26. 26.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
27. 27.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
28. 28.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) text that can grow (d) big touch targets
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Menu: 28 px
    Label: 14 px
    Title: 16 px (a) Hint (b) Menu (c) Title (d) Label
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Label: 18 px
    Title: 19 px
    Footer: 15 px
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Footer: 23 px
    Title: 11 px
33. 33.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) text that can grow (d) tiny tap areas
34. 34.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) colour-blind users (d) fast typists
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Caption: 17 px
    Footer: 26 px (a) Footer (b) Menu (c) Caption
37. 37.True or false: “labels on every icon” 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?
    Title: 20 px
    Footer: 14 px
    Hint: 13 px
    Body text: 18 px
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Body text: 25 px
    Title: 17 px (a) Label (b) Title (c) Body text
40. 40.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True

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