App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 440 · 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) fast-flashing lights (b) icons with no labels (c) labels on every icon (d) colour as the only clue
2. 2.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) captions on videos (d) colour as the only clue
3. 3.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) colour as the only clue (d) captions on videos
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 12 px
   Label: 11 px
   Hint: 13 px
5. 5.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
6. 6.Which of these makes the app harder to use? (a) big touch targets (b) icons with no labels (c) labels on every icon (d) captions on videos
7. 7.♿ What does a screen reader do? (a) takes photos (b) plays music (c) reads the screen aloud (d) makes text tiny
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 21 px
   Title: 21 px
   Menu: 19 px
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.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
11. 11.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
12. 12.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users
13. 13.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
14. 14.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a long animation (d) a text label
15. 15.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) strong colour contrast (d) captions on videos
16. 16.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
17. 17.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
18. 18.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) icons with no labels (d) strong colour contrast
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Caption: 9 px
    Hint: 19 px
    Menu: 24 px (a) Title (b) Hint (c) Caption (d) Menu
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Title: 27 px
    Label: 17 px
    Body text: 9 px (a) Title (b) Body text (c) Footer (d) Label
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Hint: 22 px
    Label: 24 px
    Caption: 12 px (a) Body text (b) Label (c) Caption (d) Hint
22. 22.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Title: 20 px
    Footer: 13 px
    Label: 15 px
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Title: 22 px
    Hint: 11 px
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Caption: 12 px
    Label: 16 px (a) Label (b) Body text (c) Caption
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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Title: 15 px
    Label: 24 px
28. 28.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) text that can grow (d) fast-flashing lights
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Caption: 18 px
    Hint: 14 px
    Title: 11 px
30. 30.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) tiny tap areas (d) labels on every icon
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Footer: 16 px
    Menu: 19 px
    Hint: 14 px
    Body text: 18 px
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 26 px
    Footer: 28 px
    Body text: 20 px
    Menu: 14 px
    Title: 27 px (a) Footer (b) Label (c) Menu (d) Body text
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 15 px
    Label: 18 px
    Menu: 14 px
34. 34.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) captions on videos (d) text that can grow
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.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
37. 37.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) fast-flashing lights (d) big touch targets
39. 39.Which of these helps everyone use the app? (a) big touch targets (b) sudden loud sounds (c) fast-flashing lights (d) icons with no labels
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Title: 18 px
    Caption: 20 px
    Menu: 15 px
    Body text: 24 px

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