App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 109 · 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) strong colour contrast (c) tiny tap areas (d) big touch targets
2. 2.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) captions on videos (d) fast-flashing lights
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 17 px
   Footer: 16 px
   Body text: 19 px
4. 4.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
5. 5.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
6. 6.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) colour as the only clue (d) labels on every icon
7. 7.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
8. 8.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 21 px
   Footer: 10 px
   Body text: 22 px
   Hint: 10 px
10. 10.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
11. 11.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
12. 12.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) icons with no labels (d) colour as the only clue
13. 13.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
14. 14.♿ A screen has 5 icon buttons. Only 2 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. How many texts on this screen are too small?
    Label: 17 px
    Caption: 22 px
    Hint: 10 px
    Footer: 12 px
    Menu: 19 px
16. 16.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
17. 17.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
18. 18.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
19. 19.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
20. 20.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
21. 21.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
23. 23.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
24. 24.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
25. 25.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
26. 26.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
27. 27.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
28. 28.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
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. How many texts on this screen are too small?
    Title: 14 px
    Caption: 20 px
    Body text: 13 px
31. 31.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) text that can grow (d) icons with no labels
32. 32.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
33. 33.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
34. 34.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) big touch targets (d) sudden loud sounds
35. 35.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) icons with no labels (d) text that can grow
36. 36.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
37. 37.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Menu: 27 px
    Footer: 21 px
    Caption: 9 px (a) Body text (b) Menu (c) Caption (d) Footer
39. 39.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) text that can grow (d) fast-flashing lights
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 22 px
    Title: 17 px
    Label: 13 px (a) Title (b) Footer (c) Label

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