App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 660 · 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 is the odd one out? (a) tiny tap areas (b) strong colour contrast (c) fast-flashing lights (d) colour as the only clue
2. 2.Which of these makes the app harder to use? (a) colour as the only clue (b) captions on videos (c) text that can grow (d) big touch targets
3. 3.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) colour as the only clue (d) icons with no labels
4. 4.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) tiny tap areas (d) fast-flashing lights
5. 5.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) sudden loud sounds
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 14 px
   Label: 28 px
   Body text: 19 px
   Caption: 21 px (a) Caption (b) Label (c) Body text (d) Title
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 27 px
   Caption: 19 px
   Footer: 11 px (a) Footer (b) Caption (c) Hint
8. 8.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
9. 9.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
10. 10.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) big touch targets (d) colour as the only clue
11. 11.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) text that can grow (d) fast-flashing lights
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Menu: 10 px
    Title: 11 px
    Hint: 11 px
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Footer: 22 px
    Body text: 18 px
    Hint: 18 px (a) Menu (b) Body text (c) Footer (d) Hint
14. 14.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) tiny tap areas (d) text that can grow
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Title: 23 px
    Menu: 14 px
    Label: 11 px
    Hint: 20 px
17. 17.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) big touch targets (d) fast-flashing lights
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Menu: 14 px
    Hint: 19 px (a) Footer (b) Hint (c) Menu
19. 19.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
20. 20.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
21. 21.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
22. 22.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
23. 23.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) labels on every icon (d) big touch targets
24. 24.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
25. 25.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) the battery (d) fast typists
26. 26.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
27. 27.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Label: 13 px
    Caption: 11 px
    Hint: 23 px
29. 29.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Menu: 23 px
    Title: 10 px
    Body text: 21 px
    Caption: 24 px (a) Body text (b) Title (c) Menu (d) Hint
31. 31.Which of these makes the app harder to use? (a) sudden loud sounds (b) strong colour contrast (c) big touch targets (d) text that can grow
32. 32.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
34. 34.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
37. 37.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) text that can grow (d) labels on every icon
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 12 px
    Body text: 24 px
    Title: 24 px (a) Body text (b) Label (c) Title
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Label: 14 px
    Menu: 18 px
    Footer: 16 px
40. 40.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder

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