App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 419 · 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) labels on every icon (b) text that can grow (c) captions on videos (d) icons with no labels
2. 2.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) colour as the only clue
3. 3.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 14 px
   Body text: 20 px
   Hint: 12 px
5. 5.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 20 px
   Body text: 23 px
   Hint: 12 px
7. 7.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a sound (d) a long animation
8. 8.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 27 px
   Caption: 18 px
   Hint: 19 px
   Title: 14 px
   Menu: 21 px (a) Caption (b) Label (c) Title (d) Hint
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Menu: 11 px
    Caption: 16 px
    Title: 15 px
    Footer: 15 px
11. 11.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Menu: 14 px
    Footer: 13 px
    Title: 18 px
    Label: 22 px
13. 13.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
14. 14.Which of these helps everyone use the app? (a) fast-flashing lights (b) text that can grow (c) tiny tap areas (d) sudden loud sounds
15. 15.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) captions on videos (d) text that can grow
16. 16.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Footer: 10 px
    Title: 18 px
18. 18.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) labels on every icon (d) fast-flashing lights
19. 19.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Label: 26 px
    Menu: 21 px
    Hint: 13 px (a) Hint (b) Label (c) Caption (d) Menu
21. 21.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Hint: 17 px
    Body text: 21 px (a) Caption (b) Hint (c) Body text
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Title: 11 px
    Menu: 16 px (a) Menu (b) Caption (c) Title
24. 24.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
25. 25.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) colour as the only clue (d) big touch targets
26. 26.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) captions on videos (d) tiny tap areas
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Menu: 10 px
    Caption: 18 px
    Hint: 12 px
    Body text: 10 px
28. 28.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
29. 29.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Menu: 15 px
    Title: 13 px
31. 31.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
32. 32.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
33. 33.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Menu: 17 px
    Hint: 20 px
    Body text: 10 px
    Label: 20 px (a) Footer (b) Menu (c) Body text (d) Hint
35. 35.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
36. 36.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Footer: 16 px
    Title: 21 px
    Label: 28 px (a) Footer (b) Label (c) Title (d) Menu
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 11 px
    Body text: 24 px
    Label: 26 px (a) Menu (b) Body text (c) Label
39. 39.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
40. 40.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True

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