App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 337 · 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 helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) captions on videos (d) icons with no labels
2. 2.Which of these makes the app harder to use? (a) captions on videos (b) sudden loud sounds (c) text that can grow (d) labels on every icon
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 23 px
   Body text: 21 px
   Hint: 23 px
   Caption: 22 px
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 16 px
   Footer: 22 px
   Menu: 24 px
   Body text: 18 px
   Label: 15 px
5. 5.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) icons with no labels (d) fast-flashing lights
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 14 px
   Caption: 19 px
   Hint: 27 px (a) Caption (b) Hint (c) Body text
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 24 px
   Menu: 24 px
   Footer: 10 px
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 11 px
   Label: 13 px
   Menu: 15 px
   Title: 23 px
9. 9.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) strong colour contrast (d) labels on every icon
10. 10.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
11. 11.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) colour as the only clue (d) fast-flashing lights
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Footer: 24 px
    Body text: 10 px
    Menu: 18 px
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Menu: 25 px
    Hint: 27 px
    Footer: 14 px
    Body text: 26 px (a) Footer (b) Title (c) Menu (d) Hint
14. 14.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
16. 16.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) tiny tap areas
17. 17.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) colour as the only clue (d) labels on every icon
18. 18.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
19. 19.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
20. 20.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Title: 16 px
    Body text: 12 px (a) Menu (b) Title (c) Body text
22. 22.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) fast-flashing lights (d) labels on every icon
23. 23.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) icons with no labels (d) strong colour contrast
24. 24.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Menu: 20 px
    Title: 16 px
    Caption: 18 px (a) Caption (b) Menu (c) Label (d) Title
26. 26.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
27. 27.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 19 px
    Body text: 14 px
    Title: 18 px (a) Title (b) Body text (c) Menu
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Label: 11 px
    Hint: 16 px (a) Footer (b) Hint (c) Label
30. 30.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
31. 31.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
32. 32.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
33. 33.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) captions on videos (d) colour as the only clue
35. 35.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 25 px
    Menu: 10 px
    Caption: 26 px
    Body text: 23 px
    Footer: 16 px (a) Hint (b) Caption (c) Body text (d) Menu
37. 37.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
38. 38.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Hint: 11 px
    Body text: 16 px
    Label: 25 px (a) Hint (b) Label (c) Title (d) Body text
40. 40.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True

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