App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 209 · 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.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
2. 2.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) tiny tap areas (d) sudden loud sounds
3. 3.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 9 px
   Body text: 28 px
   Label: 23 px
   Footer: 18 px (a) Body text (b) Label (c) Footer (d) Menu
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 14 px
   Footer: 10 px
   Caption: 21 px
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 23 px
   Footer: 12 px
   Title: 23 px
   Caption: 25 px (a) Title (b) Footer (c) Hint (d) Caption
7. 7.Which of these makes the app harder to use? (a) sudden loud sounds (b) text that can grow (c) labels on every icon (d) strong colour contrast
8. 8.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
9. 9.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
10. 10.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) strong colour contrast (d) big touch targets
11. 11.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
12. 12.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Body text: 20 px
    Menu: 12 px
    Label: 25 px (a) Label (b) Footer (c) Menu (d) Body text
14. 14.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Menu: 12 px
    Label: 19 px
    Hint: 17 px
17. 17.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) colour as the only clue (d) big touch targets
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Body text: 27 px
    Label: 19 px
    Menu: 17 px (a) Menu (b) Label (c) Hint (d) Body text
19. 19.♿ A screen has 6 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?
    Footer: 10 px
    Body text: 20 px
    Caption: 23 px (a) Body text (b) Caption (c) Footer
21. 21.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Body text: 17 px
    Footer: 11 px (a) Hint (b) Footer (c) Body text
23. 23.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
25. 25.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Hint: 17 px
    Menu: 26 px
    Label: 21 px (a) Label (b) Hint (c) Menu (d) Body text
27. 27.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) colour as the only clue
28. 28.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) big touch targets (d) tiny tap areas
29. 29.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) text that can grow (d) labels on every icon
30. 30.Which of these helps everyone use the app? (a) fast-flashing lights (b) captions on videos (c) tiny tap areas (d) icons with no labels
31. 31.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
32. 32.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
33. 33.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
34. 34.Which of these helps everyone use the app? (a) strong colour contrast (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
35. 35.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) sudden loud sounds (d) tiny tap areas
36. 36.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a long animation (d) a sound
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Body text: 24 px
    Caption: 18 px
    Footer: 23 px
    Label: 23 px (a) Footer (b) Body text (c) Caption (d) Title
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Title: 25 px
    Menu: 27 px
    Body text: 18 px (a) Title (b) Menu (c) Body text (d) Hint
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Title: 16 px
    Footer: 24 px
    Hint: 21 px (a) Title (b) Hint (c) Body text (d) Footer
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Caption: 21 px
    Label: 24 px (a) Label (b) Caption (c) Hint

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