App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 729 · 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.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
3. 3.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) strong colour contrast (d) captions on videos
4. 4.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 24 px
   Body text: 27 px
   Menu: 27 px
   Label: 26 px
   Caption: 9 px (a) Menu (b) Body text (c) Hint (d) Caption
6. 6.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) takes photos (d) makes text tiny
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 14 px
   Menu: 20 px
   Hint: 17 px (a) Label (b) Menu (c) Hint
8. 8.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
9. 9.♿ 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
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Title: 24 px
    Body text: 28 px
    Hint: 14 px (a) Title (b) Footer (c) Hint (d) Body text
11. 11.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
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: fast-flashing lights? (a) helps everyone (b) makes it harder
14. 14.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) sudden loud sounds (d) strong colour contrast
16. 16.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) colour as the only clue (d) sudden loud sounds
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 19 px
    Title: 11 px
    Label: 20 px
    Hint: 20 px (a) Hint (b) Title (c) Label (d) Menu
18. 18.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
20. 20.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) sudden loud sounds (d) colour as the only clue
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Footer: 24 px
    Menu: 27 px
    Body text: 10 px (a) Title (b) Body text (c) Footer (d) Menu
23. 23.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
24. 24.Which of these makes the app harder to use? (a) sudden loud sounds (b) text that can grow (c) labels on every icon (d) big touch targets
25. 25.Which of these makes the app harder to use? (a) big touch targets (b) icons with no labels (c) captions on videos (d) labels on every icon
26. 26.♿ A screen has 12 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
27. 27.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
29. 29.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 11 px
    Body text: 26 px
    Footer: 27 px
    Label: 25 px (a) Footer (b) Body text (c) Label (d) Hint
31. 31.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) fast-flashing lights (d) strong colour contrast
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Label: 10 px
    Body text: 17 px
    Caption: 20 px (a) Title (b) Label (c) Body text (d) Caption
33. 33.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) colour as the only clue
34. 34.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
35. 35.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) fast-flashing lights (d) strong colour contrast
36. 36.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Title: 21 px
    Hint: 19 px
    Menu: 22 px (a) Hint (b) Menu (c) Footer (d) Title
38. 38.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) captions on videos (d) fast-flashing lights
40. 40.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) sudden loud sounds (d) icons with no labels

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