App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 357 · 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.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
2. 2.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
3. 3.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
4. 4.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) big touch targets
5. 5.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
6. 6.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
7. 7.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 25 px
   Body text: 24 px
   Menu: 9 px
   Hint: 20 px
   Label: 16 px (a) Title (b) Menu (c) Hint (d) Body text
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 16 px
   Caption: 10 px
   Label: 16 px
   Body text: 24 px
   Menu: 16 px (a) Caption (b) Title (c) Label (d) Body text
10. 10.Which of these makes the app harder to use? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) text that can grow
11. 11.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
12. 12.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) colour as the only clue (d) fast-flashing lights
13. 13.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
14. 14.♿ A screen has 6 icon buttons. Only 4 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?
    Caption: 17 px
    Title: 19 px
    Label: 22 px
16. 16.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
17. 17.Which of these makes the app harder to use? (a) sudden loud sounds (b) big touch targets (c) text that can grow (d) labels on every icon
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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Hint: 21 px
    Footer: 24 px
    Label: 16 px
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Title: 11 px
    Caption: 13 px
    Label: 17 px
    Footer: 12 px
21. 21.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
22. 22.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
23. 23.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
24. 24.Which of these makes the app harder to use? (a) fast-flashing lights (b) big touch targets (c) labels on every icon (d) strong colour contrast
25. 25.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
26. 26.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) text that can grow
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Body text: 13 px
    Hint: 21 px
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.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
30. 30.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) labels on every icon (d) tiny tap areas
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Hint: 23 px
    Body text: 13 px
    Menu: 24 px (a) Menu (b) Hint (c) Title (d) Body text
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Menu: 12 px
    Caption: 25 px
    Label: 22 px (a) Menu (b) Caption (c) Title (d) Label
33. 33.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Caption: 16 px
    Footer: 22 px (a) Footer (b) Menu (c) Caption
35. 35.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 17 px
    Body text: 18 px
    Footer: 16 px
    Caption: 17 px
    Hint: 11 px
37. 37.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
38. 38.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
39. 39.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) text that can grow (d) sudden loud sounds
40. 40.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label

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