App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 234 · 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) nobody (b) only experts (c) only the coder (d) everyone
2. 2.Which of these makes the app harder to use? (a) text that can grow (b) tiny tap areas (c) strong colour contrast (d) labels on every icon
3. 3.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) captions on videos
4. 4.Which of these helps everyone use the app? (a) strong colour contrast (b) fast-flashing lights (c) sudden loud sounds (d) colour as the only clue
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) fast-flashing lights (d) text that can grow
6. 6.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) tiny tap areas (d) fast-flashing lights
7. 7.🔍 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
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 17 px
   Footer: 26 px
   Label: 13 px (a) Footer (b) Hint (c) Label
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 16 px
   Label: 24 px
   Footer: 10 px
   Body text: 19 px (a) Footer (b) Menu (c) Label (d) Body text
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 20 px
    Title: 20 px
    Body text: 16 px
    Menu: 14 px
11. 11.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) icons with no labels (d) strong colour contrast
12. 12.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
13. 13.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Title: 11 px
    Body text: 22 px (a) Title (b) Hint (c) Body text
15. 15.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) tiny tap areas (d) labels on every icon
17. 17.Which of these makes the app harder to use? (a) fast-flashing lights (b) big touch targets (c) captions on videos (d) strong colour contrast
18. 18.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
19. 19.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
20. 20.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
21. 21.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Title: 27 px
    Label: 26 px
    Hint: 27 px
    Body text: 13 px (a) Label (b) Footer (c) Body text (d) Title
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Label: 14 px
    Caption: 21 px
    Menu: 22 px
    Footer: 24 px
24. 24.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
26. 26.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Body text: 21 px
    Menu: 19 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Label: 20 px
    Footer: 16 px
    Body text: 24 px
    Menu: 12 px
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 21 px
    Footer: 17 px
    Label: 14 px
    Menu: 12 px
30. 30.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 15 px
    Footer: 22 px
    Body text: 10 px
32. 32.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
33. 33.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Label: 14 px
    Menu: 13 px
    Caption: 22 px
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Menu: 26 px
    Body text: 27 px
    Hint: 14 px (a) Title (b) Hint (c) Menu (d) Body text
37. 37.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) takes photos (d) plays music
38. 38.♿ A screen has 6 icon buttons. Only 4 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?
    Hint: 14 px
    Caption: 24 px
    Title: 28 px
    Body text: 22 px (a) Caption (b) Hint (c) Body text (d) Title
40. 40.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow

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