App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 634 · 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. How many texts on this screen are too small?
   Title: 23 px
   Footer: 10 px
   Caption: 14 px
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 12 px
   Footer: 16 px
   Menu: 20 px
   Hint: 19 px
   Caption: 27 px (a) Footer (b) Menu (c) Hint (d) Label
3. 3.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 9 px
   Footer: 19 px
   Hint: 16 px
   Label: 19 px
   Caption: 26 px (a) Label (b) Hint (c) Title (d) Footer
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 18 px
   Menu: 16 px
   Footer: 10 px (a) Menu (b) Title (c) Footer
6. 6.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
7. 7.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a sound (d) a bright colour
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 23 px
   Title: 11 px
   Menu: 12 px
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Caption: 24 px
    Label: 13 px
    Hint: 22 px
    Title: 12 px
11. 11.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) text that can grow (d) tiny tap areas
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Title: 24 px
    Hint: 20 px
    Menu: 20 px
    Label: 19 px
14. 14.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
15. 15.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) icons with no labels (d) labels on every icon
16. 16.♿ A screen has 12 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
18. 18.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
19. 19.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
20. 20.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 17 px
    Body text: 24 px
    Title: 17 px
    Menu: 12 px (a) Body text (b) Menu (c) Caption (d) Title
22. 22.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
23. 23.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
24. 24.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) tiny tap areas (d) sudden loud sounds
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Menu: 16 px
    Body text: 9 px (a) Body text (b) Menu (c) Hint
26. 26.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) text that can grow (d) sudden loud sounds
27. 27.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
28. 28.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) fast-flashing lights (d) big touch targets
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Title: 20 px
    Hint: 13 px
    Caption: 17 px
    Menu: 25 px (a) Title (b) Caption (c) Body text (d) Hint
30. 30.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
31. 31.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Caption: 10 px
    Footer: 24 px
    Title: 23 px (a) Title (b) Footer (c) Menu (d) Caption
33. 33.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Label: 21 px
    Body text: 23 px
35. 35.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) icons with no labels (d) text that can grow
36. 36.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
38. 38.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
39. 39.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
40. 40.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?

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