App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 575 · 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) icons with no labels (c) colour as the only clue (d) strong colour contrast
2. 2.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
3. 3.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
4. 4.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) sudden loud sounds (d) tiny tap areas
5. 5.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
6. 6.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
7. 7.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) colour as the only clue (d) strong colour contrast
8. 8.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) strong colour contrast (d) icons with no labels
10. 10.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
11. 11.Which of these helps everyone use the app? (a) text that can grow (b) tiny tap areas (c) colour as the only clue (d) icons with no labels
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Footer: 15 px
    Title: 15 px
    Hint: 17 px
    Menu: 18 px
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Title: 19 px
    Label: 10 px (a) Footer (b) Title (c) Label
14. 14.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
15. 15.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
16. 16.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) big touch targets (d) icons with no labels
17. 17.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) fast-flashing lights (d) sudden loud sounds
18. 18.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Hint: 28 px
    Body text: 27 px (a) Title (b) Hint (c) Body text
20. 20.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) captions on videos
21. 21.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
22. 22.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a long animation (d) a sound
23. 23.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Caption: 25 px
    Title: 27 px (a) Title (b) Body text (c) Caption
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Caption: 9 px
    Body text: 28 px
    Hint: 20 px (a) Body text (b) Hint (c) Menu (d) Caption
26. 26.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
27. 27.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
28. 28.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Caption: 10 px
    Label: 21 px
    Footer: 20 px
30. 30.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
31. 31.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
32. 32.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Body text: 19 px
    Menu: 13 px
    Caption: 13 px
34. 34.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) colour as the only clue (d) sudden loud sounds
35. 35.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
36. 36.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 11 px
    Caption: 26 px
    Menu: 25 px (a) Menu (b) Caption (c) Footer
38. 38.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
39. 39.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) fast-flashing lights (d) captions on videos

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