App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 482 · 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.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
2. 2.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) fast-flashing lights (d) big touch targets
3. 3.Which of these makes the app harder to use? (a) labels on every icon (b) sudden loud sounds (c) captions on videos (d) big touch targets
4. 4.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
5. 5.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
6. 6.Which of these helps everyone use the app? (a) colour as the only clue (b) captions on videos (c) sudden loud sounds (d) icons with no labels
7. 7.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) labels on every icon (d) icons with no labels
8. 8.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
9. 9.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Body text: 22 px
    Menu: 13 px
    Caption: 28 px (a) Caption (b) Hint (c) Menu (d) Body text
11. 11.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) text that can grow (d) colour as the only clue
12. 12.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a bright colour (d) a long animation
13. 13.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
14. 14.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) text that can grow (d) colour as the only clue
15. 15.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
16. 16.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Footer: 21 px
    Body text: 10 px
    Label: 24 px (a) Footer (b) Label (c) Caption (d) Body text
18. 18.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) icons with no labels (d) strong colour contrast
19. 19.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
20. 20.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
21. 21.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
22. 22.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Caption: 24 px
    Hint: 20 px
    Title: 10 px (a) Title (b) Hint (c) Caption (d) Body text
24. 24.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Menu: 17 px
    Caption: 16 px
    Body text: 18 px
    Hint: 10 px
26. 26.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only the coder (d) only experts
27. 27.♿ 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
28. 28.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
29. 29.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Menu: 13 px
    Body text: 24 px
    Caption: 21 px
    Label: 20 px (a) Body text (b) Caption (c) Title (d) Menu
31. 31.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Label: 22 px
    Footer: 10 px
33. 33.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) big touch targets (d) icons with no labels
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Hint: 14 px
    Body text: 23 px
    Label: 17 px
    Caption: 19 px (a) Body text (b) Hint (c) Title (d) Label
35. 35.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) fast-flashing lights (d) labels on every icon
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Label: 19 px
    Title: 11 px
    Body text: 16 px
37. 37.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
38. 38.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Title: 17 px
    Label: 27 px
    Menu: 9 px
    Hint: 23 px (a) Label (b) Title (c) Menu (d) Body text
40. 40.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True

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