App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 674 · 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?
   Menu: 21 px
   Body text: 27 px
   Title: 9 px (a) Menu (b) Body text (c) Title
2. 2.Which of these makes the app harder to use? (a) strong colour contrast (b) icons with no labels (c) big touch targets (d) labels on every icon
3. 3.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) colour as the only clue (d) sudden loud sounds
4. 4.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) labels on every icon (d) big touch targets
6. 6.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) fast-flashing lights (d) big touch targets
7. 7.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) strong colour contrast (d) captions on videos
8. 8.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) sudden loud sounds (d) captions on videos
9. 9.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
10. 10.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Menu: 19 px
    Title: 11 px
    Footer: 14 px
    Hint: 12 px
12. 12.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
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.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) icons with no labels (d) colour as the only clue
15. 15.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
16. 16.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
17. 17.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
18. 18.Which of these helps everyone use the app? (a) colour as the only clue (b) labels on every icon (c) fast-flashing lights (d) sudden loud sounds
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Hint: 28 px
    Footer: 26 px (a) Hint (b) Footer (c) Label
20. 20.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
21. 21.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
22. 22.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
24. 24.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
25. 25.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
26. 26.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) sudden loud sounds (d) fast-flashing lights
28. 28.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Title: 22 px
    Caption: 13 px
    Footer: 20 px
30. 30.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) plays music (d) takes photos
31. 31.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Menu: 23 px
    Caption: 14 px (a) Menu (b) Title (c) Caption
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Caption: 13 px
    Label: 23 px
    Footer: 21 px (a) Caption (b) Body text (c) Label (d) Footer
34. 34.Which of these helps everyone use the app? (a) big touch targets (b) fast-flashing lights (c) colour as the only clue (d) sudden loud sounds
35. 35.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) labels on every icon (d) tiny tap areas
36. 36.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
37. 37.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) colour as the only clue
38. 38.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 23 px
    Caption: 23 px
    Footer: 23 px
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Body text: 11 px
    Caption: 18 px (a) Footer (b) Body text (c) Caption

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