App Dev Worksheet: Accessibility

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

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