App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 831 · 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.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 15 px
   Caption: 14 px
   Footer: 10 px
3. 3.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
4. 4.Which of these makes the app harder to use? (a) fast-flashing lights (b) labels on every icon (c) text that can grow (d) captions on videos
5. 5.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
6. 6.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) captions on videos
7. 7.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) fast-flashing lights (d) tiny tap areas
8. 8.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
9. 9.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
10. 10.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) icons with no labels (d) labels on every icon
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Footer: 27 px
    Hint: 24 px
    Menu: 24 px
    Caption: 22 px (a) Footer (b) Menu (c) Hint (d) Body text
12. 12.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
13. 13.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
14. 14.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) fast-flashing lights (d) captions on videos
15. 15.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) big touch targets (d) colour as the only clue
16. 16.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
17. 17.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
18. 18.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
19. 19.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) text that can grow (d) sudden loud sounds
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Footer: 12 px
    Title: 19 px
    Caption: 12 px
21. 21.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
22. 22.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Footer: 22 px
    Body text: 27 px (a) Footer (b) Body text (c) Hint
24. 24.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) everyone (d) only experts
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Caption: 17 px
    Body text: 12 px (a) Body text (b) Caption (c) Hint
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Menu: 18 px
    Caption: 18 px
27. 27.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) colour as the only clue (d) labels on every icon
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Footer: 24 px
    Label: 14 px
    Hint: 17 px
    Caption: 17 px (a) Label (b) Footer (c) Body text (d) Hint
29. 29.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
30. 30.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) fast-flashing lights (d) sudden loud sounds
32. 32.Which of these helps everyone use the app? (a) text that can grow (b) icons with no labels (c) tiny tap areas (d) colour as the only clue
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Hint: 25 px
    Footer: 17 px
    Label: 23 px (a) Hint (b) Footer (c) Body text (d) Label
34. 34.Which of these makes the app harder to use? (a) sudden loud sounds (b) text that can grow (c) big touch targets (d) strong colour contrast
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 23 px
    Title: 13 px
    Menu: 18 px
    Caption: 23 px
    Hint: 26 px (a) Label (b) Title (c) Caption (d) Menu
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Body text: 18 px
    Footer: 18 px (a) Label (b) Footer (c) Body text
37. 37.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Title: 21 px
    Label: 13 px (a) Title (b) Hint (c) Label
39. 39.Which of these makes the app harder to use? (a) tiny tap areas (b) captions on videos (c) labels on every icon (d) big touch targets
40. 40.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone

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