App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 336 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 28 px
   Menu: 19 px
   Hint: 22 px
   Title: 11 px
   Caption: 16 px (a) Title (b) Menu (c) Hint (d) Label
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 13 px
   Caption: 19 px
   Body text: 19 px (a) Caption (b) Menu (c) Body text
3. 3.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) strong colour contrast (d) icons with no labels
4. 4.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 16 px
   Title: 9 px
   Label: 26 px
   Body text: 25 px
   Caption: 20 px (a) Title (b) Label (c) Menu (d) Body text
6. 6.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) captions on videos (d) text that can grow
7. 7.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 14 px
   Caption: 21 px
   Hint: 20 px
9. 9.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
10. 10.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
11. 11.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
12. 12.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) strong colour contrast (d) fast-flashing lights
13. 13.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) captions on videos (d) fast-flashing lights
14. 14.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) big touch targets (d) labels on every icon
15. 15.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
16. 16.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) strong colour contrast (d) icons with no labels
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Body text: 16 px
    Caption: 11 px (a) Caption (b) Body text (c) Title
18. 18.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) labels on every icon (d) captions on videos
19. 19.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a long animation (d) a text label
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Menu: 20 px
    Label: 18 px
    Body text: 12 px
    Caption: 23 px
21. 21.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 21 px
    Menu: 10 px
    Body text: 12 px
    Label: 14 px
    Title: 12 px
23. 23.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
24. 24.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
25. 25.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
26. 26.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Body text: 28 px
    Menu: 9 px
    Title: 27 px
    Label: 19 px (a) Menu (b) Title (c) Hint (d) Body text
28. 28.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) icons with no labels (d) tiny tap areas
30. 30.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) nobody (d) only experts
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Title: 13 px
    Body text: 21 px
    Label: 27 px
    Hint: 16 px (a) Title (b) Body text (c) Menu (d) Label
32. 32.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) strong colour contrast
33. 33.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Caption: 18 px
    Body text: 16 px
    Hint: 28 px (a) Label (b) Caption (c) Hint (d) Body text
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Hint: 23 px
    Label: 13 px
    Body text: 16 px
    Footer: 13 px
36. 36.Which of these makes the app harder to use? (a) colour as the only clue (b) captions on videos (c) text that can grow (d) strong colour contrast
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Body text: 25 px
    Footer: 23 px
    Title: 24 px
    Hint: 23 px (a) Menu (b) Body text (c) Title (d) Footer
38. 38.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
39. 39.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
40. 40.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students