App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 231 · 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.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 16 px
   Caption: 10 px
   Title: 19 px (a) Menu (b) Title (c) Caption
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 13 px
   Hint: 28 px
   Title: 17 px (a) Hint (b) Title (c) Caption
4. 4.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) strong colour contrast (d) text that can grow
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 11 px
   Footer: 21 px
   Body text: 16 px
   Title: 26 px
   Menu: 17 px (a) Title (b) Body text (c) Footer (d) Caption
6. 6.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) big touch targets (d) colour as the only clue
7. 7.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) to hide the sound (d) so anyone can follow
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 14 px
   Title: 27 px
   Hint: 25 px
   Footer: 17 px (a) Label (b) Footer (c) Title (d) Hint
9. 9.Which of these helps everyone use the app? (a) labels on every icon (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Title: 12 px
    Label: 13 px
11. 11.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
12. 12.Which of these helps everyone use the app? (a) colour as the only clue (b) big touch targets (c) fast-flashing lights (d) tiny tap areas
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Footer: 24 px
    Hint: 11 px
    Menu: 10 px
    Caption: 16 px
14. 14.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
15. 15.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
16. 16.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
17. 17.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
18. 18.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
19. 19.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) icons with no labels (d) fast-flashing lights
20. 20.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
21. 21.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
22. 22.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
23. 23.Which of these makes the app harder to use? (a) sudden loud sounds (b) big touch targets (c) captions on videos (d) text that can grow
24. 24.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) takes photos (d) makes text tiny
25. 25.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.Which of these helps everyone use the app? (a) colour as the only clue (b) captions on videos (c) icons with no labels (d) tiny tap areas
27. 27.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) sudden loud sounds (d) captions on videos
28. 28.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) captions on videos (d) icons with no labels
29. 29.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) strong colour contrast
30. 30.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) fast-flashing lights (d) labels on every icon
31. 31.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
32. 32.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Footer: 23 px
    Caption: 21 px (a) Label (b) Footer (c) Caption
34. 34.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) fast-flashing lights (d) tiny tap areas
35. 35.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
36. 36.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Label: 24 px
    Hint: 23 px
38. 38.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) tiny tap areas (d) labels on every icon
39. 39.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
40. 40.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) labels on every icon (d) sudden loud sounds

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