App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 491 · 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. Which text on this screen is too small?
   Title: 21 px
   Menu: 14 px
   Body text: 21 px (a) Menu (b) Title (c) Body text
2. 2.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 21 px
   Title: 23 px
   Caption: 20 px
   Body text: 9 px (a) Title (b) Caption (c) Menu (d) Body text
4. 4.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) text that can grow (d) icons with no labels
5. 5.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
6. 6.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
7. 7.Which of these helps everyone use the app? (a) sudden loud sounds (b) text that can grow (c) fast-flashing lights (d) tiny tap areas
8. 8.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
9. 9.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Menu: 23 px
    Title: 24 px
11. 11.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
14. 14.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
16. 16.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) icons with no labels (d) sudden loud sounds
17. 17.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) only the coder (d) nobody
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Hint: 13 px
    Title: 10 px
19. 19.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
20. 20.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) strong colour contrast
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Title: 21 px
    Body text: 21 px
    Menu: 24 px
    Footer: 14 px
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Body text: 11 px
    Title: 23 px
    Hint: 16 px
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Footer: 16 px
    Menu: 18 px
    Body text: 17 px (a) Menu (b) Title (c) Body text (d) Footer
24. 24.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) labels on every icon
25. 25.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) captions on videos (d) tiny tap areas
26. 26.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) text that can grow (d) strong colour contrast
27. 27.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
28. 28.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) tiny tap areas (d) fast-flashing lights
29. 29.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
30. 30.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
31. 31.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) text that can grow (d) colour as the only clue
32. 32.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) tiny tap areas (d) big touch targets
33. 33.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
35. 35.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) sudden loud sounds (d) big touch targets
36. 36.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) fast-flashing lights (d) colour as the only clue
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 16 px
    Body text: 23 px
    Title: 15 px
    Menu: 17 px
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Menu: 25 px
    Caption: 20 px (a) Caption (b) Label (c) Menu
40. 40.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?

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