App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 111 · 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 of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) tiny tap areas (d) text that can grow
2. 2.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
3. 3.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 16 px
   Hint: 11 px
   Menu: 21 px
   Caption: 16 px
   Footer: 11 px
5. 5.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 26 px
   Hint: 10 px
   Body text: 27 px (a) Menu (b) Hint (c) Body text
7. 7.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
8. 8.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
9. 9.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
10. 10.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
11. 11.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
12. 12.Which of these makes the app harder to use? (a) big touch targets (b) icons with no labels (c) labels on every icon (d) text that can grow
13. 13.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
14. 14.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Title: 14 px
    Caption: 16 px (a) Title (b) Caption (c) Footer
16. 16.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
17. 17.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) icons with no labels (d) colour as the only clue
18. 18.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
19. 19.Which of these helps everyone use the app? (a) fast-flashing lights (b) strong colour contrast (c) tiny tap areas (d) colour as the only clue
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Caption: 24 px
    Label: 20 px
    Hint: 26 px
    Title: 26 px (a) Caption (b) Label (c) Body text (d) Hint
21. 21.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 18 px
    Label: 24 px
    Caption: 10 px
    Title: 14 px
    Footer: 11 px
23. 23.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) captions on videos (d) text that can grow
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Menu: 16 px
    Footer: 26 px
    Title: 11 px
    Hint: 23 px (a) Title (b) Footer (c) Caption (d) Menu
25. 25.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) only the coder (d) nobody
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) sudden loud sounds
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Footer: 11 px
    Caption: 17 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Label: 10 px
    Footer: 10 px
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Body text: 18 px
    Title: 17 px (a) Body text (b) Footer (c) Title
30. 30.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Hint: 22 px
    Menu: 23 px
    Label: 14 px
    Caption: 21 px
32. 32.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a long animation (d) a bright colour
33. 33.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) text that can grow (d) big touch targets
34. 34.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
35. 35.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
36. 36.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
37. 37.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
38. 38.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
39. 39.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
40. 40.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder

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