App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 299 · 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) text that can grow (b) labels on every icon (c) strong colour contrast (d) colour as the only clue
2. 2.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
3. 3.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 12 px
   Title: 26 px
   Label: 19 px (a) Label (b) Title (c) Footer
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) captions on videos (d) big touch targets
6. 6.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
7. 7.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) tiny tap areas (d) text that can grow
9. 9.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) fast-flashing lights (d) big touch targets
10. 10.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
11. 11.♿ 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
12. 12.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
13. 13.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
14. 14.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
15. 15.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
16. 16.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) tiny tap areas (d) strong colour contrast
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Body text: 23 px
    Menu: 18 px
    Title: 22 px
    Hint: 14 px (a) Body text (b) Footer (c) Menu (d) Hint
18. 18.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) tiny tap areas (d) labels on every icon
19. 19.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
20. 20.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
21. 21.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
22. 22.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) text that can grow
23. 23.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Hint: 19 px
    Caption: 19 px
    Menu: 22 px
    Title: 17 px (a) Hint (b) Menu (c) Caption (d) Body text
25. 25.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
26. 26.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) fast-flashing lights (d) sudden loud sounds
27. 27.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) tiny tap areas (d) fast-flashing lights
28. 28.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
29. 29.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) text that can grow (d) labels on every icon
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Title: 19 px
    Body text: 22 px
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Menu: 16 px
    Body text: 21 px
32. 32.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Caption: 19 px
    Label: 18 px
    Title: 12 px (a) Body text (b) Caption (c) Title (d) Label
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Hint: 16 px
    Caption: 23 px
    Title: 11 px
    Menu: 15 px
35. 35.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
36. 36.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
37. 37.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) icons with no labels (d) strong colour contrast
38. 38.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 17 px
    Hint: 24 px
    Body text: 27 px
    Label: 17 px
    Caption: 13 px (a) Footer (b) Body text (c) Caption (d) Hint
40. 40.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?

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