App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 723 · 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 is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) captions on videos (d) fast-flashing lights
2. 2.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 13 px
   Menu: 21 px
   Label: 20 px (a) Label (b) Title (c) Menu
4. 4.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
6. 6.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
7. 7.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 12 px
   Body text: 22 px
   Caption: 16 px
9. 9.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
10. 10.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) colour as the only clue (d) sudden loud sounds
11. 11.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) strong colour contrast (d) captions on videos
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Caption: 18 px
    Label: 16 px
    Hint: 22 px
    Menu: 18 px (a) Label (b) Hint (c) Caption (d) Body text
13. 13.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Menu: 11 px
    Hint: 23 px
    Title: 12 px
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 26 px
    Caption: 27 px
    Body text: 22 px
    Title: 14 px
    Hint: 19 px (a) Body text (b) Caption (c) Title (d) Label
16. 16.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
17. 17.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
18. 18.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Footer: 10 px
    Menu: 13 px
    Hint: 19 px
    Caption: 22 px
20. 20.♿ 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
21. 21.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
22. 22.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
23. 23.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) tiny tap areas (d) strong colour contrast
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Menu: 11 px
    Title: 19 px
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Label: 12 px
    Title: 18 px
26. 26.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
27. 27.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Title: 28 px
    Label: 23 px
    Hint: 20 px
    Menu: 13 px (a) Body text (b) Menu (c) Title (d) Label
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Hint: 24 px
    Label: 20 px
30. 30.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
31. 31.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
32. 32.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) icons with no labels
33. 33.♿ A screen has 9 icon buttons. Only 6 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: text that can grow? (a) helps everyone (b) makes it harder
35. 35.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) big touch targets (d) strong colour contrast
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 21 px
    Caption: 21 px
    Body text: 11 px
    Menu: 13 px
    Footer: 19 px
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Title: 18 px
    Label: 12 px
38. 38.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) text that can grow
39. 39.Which of these helps everyone use the app? (a) captions on videos (b) fast-flashing lights (c) colour as the only clue (d) tiny tap areas
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Title: 21 px
    Label: 20 px
    Body text: 10 px

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